Economics-Watching: How Green Innovation Can Stimulate Economies and Curb Emissions

[from IMF Blog, by Zeina Hasna, Florence Jaumotte & Samuel Pienknagura]

Coordinated climate policies can spur innovation in low-carbon technologies and help them spread to emerging markets and developing economies

Making low-carbon technologies cheaper and more widely available is crucial to reducing harmful emissions.

We have seen decades of progress in green innovation for mitigation and adaptation: from electric cars and clean hydrogen to renewable energy and battery storage.

More recently though, momentum in green innovation has slowed. And promising technologies aren’t spreading fast enough to lower-income countries, where they can be especially helpful to curbing emissions. Green innovation peaked at 10 percent of total patent filings in 2010 and has experienced a mild decline since. The slowdown reflects various factors, including hydraulic fracking that has lowered the price of oil and technological maturity in some initial technologies such as renewables, which slows the pace of innovation.

The slower momentum is concerning because, as we show in a new staff discussion note, green innovation is not only good for containing climate change, but for stimulating economic growth too. As the world confronts one of the weakest five-year growth outlooks in more than three decades, those dual benefits are particularly appealing. They ease concerns about the costs of pursuing more ambitious climate plans. And when countries act jointly on climate, we can speed up low-carbon innovation and its transfer to emerging markets and developing economies.

IMF research [archived PDF] shows that doubling green patent filings can boost gross domestic product by 1.7 percent after five years compared with a baseline scenario. And that’s under our most conservative estimate—other estimates show up to four times the effect.

The economic benefits of green innovation mostly flow through increased investment in the first few years. Over time, further growth benefits come from cheaper energy and production processes that are more energy efficient. Most importantly, they come from less global warming and less frequent (and less costly) climate disasters.

Green innovation is associated with more innovation overall, not just a substitution of green technologies for other kinds. This may be because green technologies often require complementary innovation. More innovation usually means more economic growth.

A key question is how countries can better foster green innovation and its deployment. We highlight how domestic and global climate policies spur green innovation. For example, a big increase in the number of climate policies tends to boost green patent filings, our preferred proxy for green innovation, by 10 percent within five years.

Some of the most effective policies to stimulate green innovation include emissions-trading schemes that cap emissions, feed-in-tariffs, which guarantee a minimum price for renewable energy producers, and government spending, such as subsidies for research and development. What’s more, global climate policies result in much larger increases in green innovation than domestic initiatives alone. International pacts like the Kyoto Protocol and the Paris Agreement amplify the impact of domestic policies on green innovation.

One reason policy synchronization has a prominent impact on domestic green innovation is what is called the market size effect. There’s more incentive to develop low-carbon technologies if innovators can expect to sell into a much larger potential market, that is, in countries which adopted similar climate policies.

Another is that climate policies in other countries generate green innovations and knowledge that can be used in the domestic economy. This is known as technology diffusion. Finally, synchronized policy action and international climate commitments create more certainty around domestic climate policies, as they boost people’s confidence in governments’ commitment to addressing climate change.

Climate policies even help spread the use of low-carbon technologies in countries that are not sources of innovation, through trade and foreign-direct investment. Countries that introduce climate policies see more imports of low-carbon technologies and higher green FDI inflows, especially in emerging markets and developing economies.

Risks of protectionism

Lowering tariffs on low-carbon technologies can further enhance trade and FDI in green technologies. This is especially important for middle- and low-income countries where such tariffs remain high. On the flipside, more protectionist measures would impede the broader spread of low-carbon technologies.

In addition, and given evidence of economies of scale, protectionism—with ultimately smaller potential markets—could stifle incentives for green innovation and lead to duplication of efforts across countries.

The risks of protectionism are exacerbated when climate policies, such as subsidies, do not abide by international rules. For example, local content requirements, whereby only locally produced green goods benefit from subsidies, undermine trust in multilateral trade rules and could result in retaliatory measures.

Beyond embracing a rules-based approach to climate policies, the advanced economies, where most green innovation occurs, have an important responsibility: sharing the technology so that emerging and developing economies can get there faster. Such direct technology transfers hold the promise of a double dividend for emerging markets and developing economies—reducing emissions and yielding economic benefits.

—This blog reflects research by Zeina Hasna, Florence Jaumotte, Jaden Kim, Samuel Pienknagura and Gregor Schwerhoff.

From ASEAN and G20 to APEC, as World Leaders Meet in Person Again, 3 Reasons to Root for Multilateralism

By Wang Huiyao | Founder of the Center for China and Globalization (CCG)

Over the past two weeks, Asia has played host to the most intense sequence of multilateral summits since the pandemic began, as national leaders gathered for meetings organized by ASEAN, the G20 and APEC. Although overshadowed by geopolitical tensions, the meetings marked a welcome return to in-person summit diplomacy, and the better-than-expected outcomes show hope yet for multilateralism.

The conclaves began in Phnom Penh with the annual summit of the Association of Southeast Asian Nations. At the first of such in-person events in almost three years, ASEAN leaders took the positive step of agreeing in principle to admit East Timor as the 11th member of the organization.

As leaders moved on to Bali for the Group of 20 summit, expectations were low after ministerial meetings in the run-up had failed to produce consensus. Earlier in the year, given fractures in the wake of Russia’s invasion of Ukraine, there was a question mark over whether the G20 could even go ahead or survive in its existing form.

In the end, the summit surpassed expectations by producing a joint declaration after intense negotiations, with leaders finding the compromises necessary to unite in declaring that “today’s era must not be of war” and pledging to uphold the multilateral system.

The summit also saw a positive face-to-face meeting between China’s President Xi Jinping and U.S. President Joe Biden, their first as leaders, signaling a willingness to halt the downward trajectory of China-U.S. relations.

In Bangkok, the 21 leaders of the Asia-Pacific Economic Cooperation forum also pledged to uphold and strengthen the rules-based multilateral trading system. Importantly, the group agreed on a multi-year work plan for an Asia-Pacific free trade area.

Reflecting on these three summits, three takeaways give reason for cautious optimism that multilateralism can yet be revived and play a major role in solving our challenges.

First, and perhaps most obviously, the return of in-person summit diplomacy is a welcome uplift for global cooperation. Virtual formats played a useful interim role at the height of the pandemic but were never a substitute for getting leaders in the same room. That is especially when it comes to interactions on the sidelines, often as important as the main event.

China’s return to diplomacy at the highest level was a further boost, both for the nation and the rest of the world.

In addition to Xi’s highly anticipated meeting with Biden, the Chinese leader met over a dozen other leaders at the G20 and APEC summits, including a warmer-than-expected first meeting with Japanese Prime Minister Fumio Kishida and his first meeting with an Australian prime minister since 2016.

Leaders got to meet their new counterparts for the first time or build on existing relationships, which can only help global cooperation.

The second takeaway is that as grave as our challenges are, the threat of escalating conflict and severe economic pressures on all nations seem to be focusing minds and increasing the willingness to engage and cooperate—out of necessity if nothing else.

The G20 summit was the second major one this year to surpass expectations after the 12th World Trade Organization Ministerial Conference in June surprised observers by agreeing on a plan to reform the organization and its dispute settlement mechanism. The G20 statement reiterated support for this WTO reform plan, which will be critical to get the free trade agenda back on track and provide a much-needed boost for the global economy.

Third, and perhaps most significantly for the long term, the recent summits marked an acceleration of the trend towards multi-polarization in international diplomacy, and in particular, the rising influence of non-aligned “middle powers” to shape multilateral outcomes.

The middle powers represented at ASEAN, the G20 and APEC have huge stakes in avoiding a bifurcation of the global economy that might result from a new cold war. They don’t want to be forced to pick sides and many show a growing willingness and ability to build bridges and restore positive momentum for multilateralism.

Indonesia is a prime example. The country’s strategic heft and non-aligned credibility make it well-placed to bridge different camps. President Joko Widodo made a big political bet on the success of the G20 and has won praise for the deft diplomacy that kept the organization alive and got it to a joint statement.

The Indian delegation reportedly also played a big role in achieving consensus on language in the statement, with the BRICS group (Brazil, Russia, India, China and South Africa)—as well as Indonesia—turning out to be crucial swing voters in securing the joint statement. One Indian official said it was “the first [G20] summit where developing nations shaped the outcome.”

There is scope for this trend to continue next year as middle powers continue to rise in stature, and India and Indonesia take over the presidency of the G20 and ASEAN, respectively. Brazil will host the G20 the year after.

Over in Sharm el-Sheikh at the COP27 UN climate summit, another middle power—the host Egypt—also won praise for helping to shepherd a historic financing deal for poor countries affected by climate change. But the ultimate failure to reach a commitment to phase down fossil fuels was a sobering reminder of the huge difficulties that remain in forging the global consensus needed to overcome our shared challenges.

Carbon-Watching: Will Civilization Collapse Because It’s Running Out of Oil?

[from the Post Carbon Institute]

Abstract

This paper [Archived PDF] assesses how much oil remains to be produced, and whether this poses a significant constraint to global development. We describe the different categories of oil and related liquid fuels, and show that public-domain by-country and global proved (1P) oil reserves data, such as from the EIA or BP Statistical Review, are very misleading and should not be used. Better data are oil consultancy proved-plus-probable (2P) reserves. These data are generally backdated, i.e. with later changes in a field’s estimated volume being attributed to the date of field discovery. Even some of these data, we suggest, need reduction by some 300 Gb for probable overstatement of Middle East OPEC reserves, and likewise by 100 Gb for overstatement of FSU (floating storage unit) reserves. The statistic that best assesses ‘how much oil is left to produce’ is a region’s estimated ultimately recoverable resource (URR) for each of its various categories of oil, from which production to-date needs to be subtracted. We use Hubbert linearization to estimate the global URR for four aggregate classes of oil, and show that these range from 2500 Gb for conventional oil to 5000 Gb for ‘all-liquids’. Subtracting oil produced to-date gives estimates of global reserves of conventional oil at about half the EIA estimate. We then use our estimated URR values, combined with the observation that oil production in a region usually reaches one or more maxima when roughly half its URR has been produced, to forecast the expected dates of global resource-limited production maxima of these classes of oil. These dates range from 2019 (i.e., already past) for conventional oil to around 2040 for ‘all-liquids’. These oil production maxima are likely to have significant economic, political and sustainability consequences. Our forecasts differ sharply from those of the EIA, but our resource-limited production maxima roughly match the mainly demand-driven maxima envisaged in the IEA’s 2021 ‘Stated Policies’ scenario. Finally, in agreement with others, our forecasts indicate that the IPCC’s ‘high-CO2’ scenarios appear infeasible by assuming unrealistically high rates of oil production, but also indicate that considerable oil must be left in the ground if climate change targets are to be met. As the world seeks to move towards sustainability, these perspectives on the future availability of oil are important to take into account.

Read the full paper. [Archived PDF]

Climate-Watching: A Collision of Economics and History: In Pennsylvania, the Debate over Climate Is a Bitter One

The state has both a long history of environmental action and a longstanding dependence on fossil fuels.

[from Inside Climate News, by David Shribman, July 17, 2022]

This is a state where natural gas production reached a record 7.1 trillion cubic feet in 2020, the most of any state outside Texas and more than the energy supplied by the state’s nuclear power plants. It’s a state that has 49 underground gas storage sites, more than any other in the nation.  Its coal production ranks behind only Wyoming and West Virginia, and only Wyoming and Texas export more total energy to other parts of the country.

This is also a state where voters will select a new governor and a new senator in November. No state has more vital elections this year; no state has a more complicated and more contentious political culture; and no state provides a better test case for environmental issues and for the future of the climate-change debate.

Welcome to Pennsylvania.

Don’t pack a sweater: the average temperature in the state has risen by 2.8 degrees Fahrenheit since the first Earth Day, in 1970, a bigger increase than the national average.

Don’t breathe deeply: the state’s two major cities, Philadelphia and Pittsburgh, are among the nation’s worst 25 metropolitan areas for annual particulate air pollution

And don’t fail to note the irony—of a state whose economy and lifestyle are unusually dependent on fossil fuels but whose history is unusually rich in the love of nature and the protection of the environment. It is this collision of economics and history that makes environmental issues so emotional, the debate so bitter, the outcome so vital.

Pennsylvania was the home of John J. Audubon, who cultivated in Americans a love of bird life; Rachel Carson, whose clarion call about the environment jolted the country and shook the Kennedy administration; John Chapman, known to school children nationwide as Johnny Appleseed; J. Horace McFarland, a photographer and conservationist celebrated as the Father of the National Park Service; Harold L. Ickes, the pathfinding Secretary of the Interior during the Franklin D. Roosevelt years who shored up perhaps the least effective and most corrupt arm of government while elevating the standards and practices of the National Park Service; and Jerome Rodale, the publisher whose books gave voice to the ethos of sustainable agriculture. And it was the adopted home of William Penn, the founder of the colony that would bear his name and the author of a conservation edict requiring that 20 percent of the land in the Province of Pennsylvania be preserved as wooded. It is no surprise that Pennsylvania was one of the first states to adopt an Environmental Bill of Rights.

But Pennsylvania also was the setting for environmental milestones of an entirely different type. In Donora, a 1948 smog episode killed 20 people and saddled some 40 percent of the town’s population with respiratory disease. A third of a century later, the partial meltdown of Unit 2 of the Three Mile Island nuclear plant in Dauphin County spewed radioactivity into the Harrisburg area. 

The state has had multiple mine disasters and the subsequent contamination of nearby fields and streams. As early as 1883, the explorer and adventure travel writer Willard Glazer wrote that Pittsburgh’s industry was “rendered possible by the coal which abounds in measureless quantity in the immediate neighborhood of the city”—and which contributed to the poisoning of many of the area’s waterways and the despoiling of the air. As late as 1940, 81 percent of the city’s dwellings burned coal. The emissions from the steel mills that helped the country win two world wars and build a robust mass-consumer economy only added to the environmental distress.

This duality is part of, defines all of, Pennsylvania’s natural and political history.  It is embedded in the origin story of Pennsylvania and reinforced in contemporary history. In the WPA Guide to Pennsylvania, the writers of the New Deal-era product of the Federal Writers Project spoke in 1940 of how the main plant of the Pittsburgh Plate Glass Company in Ford City, Pennsylvania, “extends for a mile along Third Avenue in a series of long squat units composed of red brick,” and how the state’s Red Hills were exceeded only in Belgium as “the finest farm section in the world.” Precisely three-quarters of a century ago, in his classic 1947 book, Inside U.S.A., the journalist John Gunther wrote, “To a degree the story of Pennsylvania is the story of iron, coal, and steel. Yet of its 26 million acres, almost half is forest!”

A state known for producing metals and fouling the air is also a state known for hunting grouse, pheasant, deer and bear. A state teeming with factory workers is a state loaded with farmers. A state with two major power centers, Philadelphia and Pittsburgh, is a state where elections often are decided in the agricultural “T” between the two. A state known for building belching steel plants is also a state where, this spring, the owners of Fallingwater, the Frank Lloyd Wright masterpiece, announced that they would install solar panels on the iconic house to offset the power used at the site on Bear Run in Fayette County. And when it comes to environmental issues, Pennsylvania is a state where manufacturing and banking interests have enormous influence in the stately Capitol in Harrisburg, and also a state full of climate activists determined to hold industry in check and battle climate change.

“It is particularly difficult in Pennsylvania to come to any agreement on environmental issues because coal and natural gas have countervailing pressure against attempts to deal with climate change,” said Joel A. Tarr, a Carnegie Mellon University historian who studies the effect of technology on the urban environment. “When you tell people that we have a problem with air quality here, their response is that it used to be much worse. This is a place where we won’t have a water-quality solution until we have a cholera epidemic and we won’t address climate change until we have a major catastrophe that brings it home to Pennsylvania.”

Not that there haven’t been efforts. “A generalized good always takes a back seat to a specific interest,” Gov. Tom Wolf, a Democrat, told me in an interview for this article. “We all benefit from a healthy environment, but there are specific interests that are specifically harmed if we do the right thing. Those specific interests have a lot of power in places like Harrisburg.”

The frequent result of these countervailing impulses and competing interests: paralysis on environmental matters, even as the latest United Nations report, published in April, warned that the world was on a path to a rate of global warming more than double the 2.7-degrees Fahrenheit set as the preferred global goal in 2015 in Paris.

U.N. Secretary General António Guterres warned that the result would be “unprecedented heatwaves, terrifying storms, widespread water shortages and the extinction of a million species of plants and animals,” adding, “This is not fiction or exaggeration. It is what science tells us will result from our current energy policies.”

 A City (and State) in Crisis

As man proceeds toward his announced goal of the conquest of nature, he has written a depressing record of destruction, directed not only against the earth he inhabits but against the life that shares it with him.

Rachel Carson, in Silent Spring

In many ways, Pittsburgh—once smoky, still gritty, now proud of its “eds-and-meds” economy, its edgy youth culture and yeasty locavore restaurant scene—stands as a symbol of Pennsylvania’s environmental and climate crisis.

In the past half century, the city’s average temperature has risen by 2.8 degrees, according to figures compiled by Climate Central—a jarring result for a city where the local political grandees like to emphasize how the area has moved beyond its heavy-manufacturing past. Even with the dramatic decline in the steel industry, Pittsburgh remains the 10th worst city in the country in terms of the presence of short-term particulate matter, and the Breathe Meter indicator that monitors the area’s air has found that 88.5 percent of metro areas in the country have cleaner air. Moreover, a study by Community Partners in Asthma Care found that the rate of asthma in Pittsburgh-area school children is nearly three times the national average.

For generations, no essay on the environment of Pennsylvania was complete without citing Charles Dickens’ characterization of mid-19th century Pittsburgh as “hell with the lid lifted,” or Lincoln Steffens’ complaint about the city’s “smoky gloom” and the “volcanic light upon the cloud of mist and smoke” that appeared with the periodic opening of the blast furnaces. When my wife and I bought a house in Pittsburgh two decades ago—when almost the entire steel industry had closed down in the area—we paid thousands of dollars to have a century’s worth of soot blasted from the brick facade.

All of that before the word “fracking” was introduced into the lexicon of the Pennsylvania debate.

“There is gas in the ground and people have been taking it out of the ground since before I was governor,” Wolf said in the interview. “If I could snap my fingers, we would go completely to wind and solar. I haven’t figured out how to do this. The job is to manage the transition to that energy future.”

Republicans in recent years have sought to deregulate the natural gas industry, expand drilling, ease stipulations for gas permits, open state parklands for energy extraction and open new opportunities for gas pipelines, having the state subsidize them.

“These things were not always Republican goals,” said David Hess, who was secretary of the Pennsylvania Department of Environmental Protection under Republican Governors Tom Ridge and Mark Schweiker. “Republicans once had environmental issues as a pretty high priority. Only recently have Republicans changed their approach. This issue is no longer bipartisan, and that applies especially to climate change. But the only way we can break the loop we are on is to do something different, and yet industry and their Republican allies want more and more. Putting all the stuff in the air from fossil fuels cannot be good, especially when we have clean alternatives.”

And yet the Keystone State has not been entirely a conscientious objector to environmental initiatives.

At a time when there was so much soot in the air that Pittsburgh kept its street lights on all day long and businessmen were forced to change their soiled shirts after returning from a walk to a lunch appointment, Mayor David Lawrence undertook a dramatic anti-smoke campaign in 1946 that greatly improved the air quality in the city. “I am convinced that our people want clean air,” the mayor said in his first inaugural address. “There is no other single thing which will so dramatically improve the appearance, the health, the pride, the spirit of the city.”

Lawrence was not alone. “The advocates of the Pittsburgh Renaissance conceived of decreased pollution as a means of assisting the transition of the city from a heavy-industry to a service economy by improving, modernizing, and reconstructing its central business district,” Stefano Laconi, who teaches the history of the Americas at the University of Florence, wrote in a 1999 essay in the journal Pennsylvania History. He argued that the initiative provided Lawrence “not only with the foundation of a public-private partnership but also with the basis of a bipartisan political coalition with local Republican moguls like Richard King Mellon.”

Years later, Republican Gov. Ridge, with Democratic support, began his administration with an initiative to clean up and redevelop brownfield sites. At the same time, the legislature won national attention by reorganizing the state’s approach to these issues, creating separate departments of Environmental Protection, which concentrates on protecting the air, water and land from pollution, and Conservation and Natural Resources, focused on state parks and state forests.

“At the beginning of my administration, I issued a challenge to Pennsylvania to become a national leader in finding new ways to protect our environment while promoting economic progress, to provide for the needs of the present without compromising the ability for future generations to meet needs of their own, and to think in terms of sustainability, with both the economy and our environment,” Ridge told me.  

The governor was fond of quoting the adage, “We do not inherit the earth from our ancestors; we borrow it from our children.” As governor, he said that,“I would often remind myself that the air we breathe and the water we drink should never be taken for granted.”

Much to be Done and an Election That Matters

The fact that a man is to vote forces him to think.

Jonathan Chapman, known as Johnny Appleseed

Ordinarily, the multi-interest collision of jobs and climate, energy and environment, might be top-shelf issues in a state that ranks second only to Texas in energy production and that had the largest increase in natural-gas production in the last decade. But that collision is a side show rather than the main event.

“All of these candidates need to speak up and tell us what they would do about the energy situation and the climate crisis that is growing more critical by the minute,” said Larry Schweiger, a former president of the National Wildlife Federation, PennFuture and the Western Pennsylvania Conservancy. “It is very frustrating to see candidates for governor and the Senate not making an effort to say how they would address these urgent issues. Both parties are guilty of  this, and it is a big omission and a big problem.”

Now Democratic Attorney General Josh Shapiro and Republican state Sen. Douglas Mastriano are facing off for governor and Democratic Lt. Gov. John Fetterman and Republican celebrity doctor Mehmet Oz are fighting for the U.S. Senate seat being relinquished by GOP Sen. Patrick Toomey

The four will face questions about their commitment to climate change with new urgency—and new stakes. And the pressure may well come from a newly critical group of voters: young people.

A Harris Poll survey conducted with 4-H found just fewer than half of teenagers believe political and global leaders are taking meaningful action to protect the environment. There is reason to believe that the top tier of teenagers, eligible to vote, and their older brothers and sisters will be motivated and perhaps mobilized by these issues.

“There’s no question that environmental issues are far more critical for younger voters,” said Steven Farnsworth, the political scientist who is director of University of Mary Washington’s Center for Leadership and Media Studies in Virginia. “This has been going on since the first Earth Day. It has to do with the fact that younger people are going to be on this planet longer than older people.”

The approach that these four nominees bring to these matters is important. “It’s not about issues, it’s about values,” said John Della Volpe, director of polling at Harvard Kennedy School of Government’s Institute of Politics and the author of the newly published How Gen Z is Channeling Their Fear and Passion to Save America. “And the degree to which candidates can connect climate change into values, and display that they are thinking about the future, they could affect the turnout of young people and how they do vote.”

There is much to be done. Pennsylvania ranks 19th among the states in the rate of growth for wind power, according to the PennEnvironment Research and Policy Center, and 23rd among the states in the rate of growth for solar power. The potential is great; if solar units were placed on the roofs of Pennsylvania’s big-box stores, for example, the result could be the annual production of more than 3,000 gigawatt-hours of clean electricity. There are bills in the legislature to require the state’s suppliers of electricity to generate nearly a third of their energy from renewable sources by 2030 and to put the state on a course to having 100 percent of its energy needs provided by wind and solar energy and other sources by the middle of the century.

Much of the emphasis will be on the state level, which is why the gubernatorial race between Shapiro, the Democratic attorney general, and GOP state Sen. Mastriano is so critical.

Shapiro speaks easily about clean energy, says he believes that more electric-vehicle infrastructure investments must be made, and pledges strict monitoring of the state’s utility companies. But he has broken with Gov. Wolf over whether the state should join the Regional Greenhouse Gas Initiative, known as RGGI, which puts a price and descending cap on carbon emissions. With an eye toward the power of the state’s building trades, he believes RGGI will be ineffective and will cause hardship among the state’s energy workers and companies.

As the state’s Democratic Senate candidate, Lt. Gov. Fetterman speaks of the climate issue as an “existential crisis” and argues that the jobs-versus-environment calculus represents a false choice. “We still need to make stuff in this country, you know?” A onetime advocate of a moratorium on new fracking sites, he now sees a rationale for a limited, perhaps temporary, expansion. “I have been steadfastly talking about how important it is that we retain the manufacturing jobs and the energy jobs in Pennsylvania that currently provide our energy security,” he said at a debate at Carnegie Mellon University, but added, “We also must acknowledge and recognize that we have to trend …. away from these.”

The Republican candidates in these two high-profile races take substantially different positions from their Democratic rivals. Oz, the Senate candidate, has abandoned his onetime advocacy of strict environmental regulation and calls for the “freedom to frack.” Mastriano, the Republican gubernatorial nominee, has argued that Wolf’s RGGI plan would “do far more harm than good” and this spring he submitted legislation to ban the federal government from regulating coal and gas extraction in Pennsylvania and to exempt the state’s industrial plants from the federal wastewater and air pollution rules. “We’re going to open up our energy sector like you’ve never seen,” Mastriano said at his victory celebration after he won the GOP primary.

A Monumental Figure

Unless we practice conservation, those who come after us will have to pay the price of misery, degradation, and failure for the progress and prosperity of our day.

Gifford Pinchot

If there is one symbol of the tensions, perspectives, history and impulses of Pennsylvania in environmental matters it is not the gentle Audubon, who nurtured a love of birds in the heart and mind of the nation, nor the hard-faced leaders of power plants and coal mines. It is not the passionate Carson nor the resolute lobbyists who besiege the legislative chambers in Harrisburg. All are part of the Keystone State culture, but none of them personifies the colliding interests in this vital and emotional area of political conflict.

Only one person does, and that is Gifford Pinchot.

Today, Pinchot is largely a forgotten figure, overshadowed as a conservationist by John Muir, eclipsed as a visionary by Theodore Roosevelt. Today, Gaylord Nelson, the late senator from Wisconsin and the founder of Earth Day, is regarded as the political magus of the conservation movement, a title once plausibly claimed by Pinchot. Today the world regards Wangari Maath, the Kenyan activist who founded the Green Belt Movement and won the 2004 Nobel Peace Prize, as the most celebrated troubadour and warrior for the environment.

All these titles once belonged to Pinchot, a monumental figure who was the 28th governor of the Commonwealth of Pennsylvania. He served two terms in the Capitol and lived in a family home named Grey Towers, just outside the tourist town of Milford, Pennsylvania. The home is now a National Historic Site and home to the Pinchot Institute for Conservation, dedicated to fashioning innovative responses to conservation and environmental challenges.

Pinchot, who died in 1946, went to his grave with a green-plated resume: First chief of the U.S. Forest Service. Chief of the U.S. Division of Forestry. Head of the Pennsylvania forestry division. At one time, the term “Pinchotism” was derided in Congress by business interests the way “Reaganomics” was criticized by early 1980s Democrats—until Pinchotism, like Reagonomics, was redeemed in the public eye.

And yet Pinchot does not wear an unblemished hero’s halo in history. Until recent damaging disclosures, that belonged to his chief rival, John Muir, his one-time ally and patron, though the shine on Muir was darkened in 2020, when Michael Brune, executive director of the Sierra Club that Muir helped found in 1892, cited him for having “made derogatory comments about Black people and Indigenous peoples that drew on deeply harmful racist stereotypes, though his views evolved later in his life.”

But in the long-ago conflict between Muir and Pinchot that spanned the period 1908 to 1913 and spilled over into later years is a story that captures the conflict at the heart of the environmental issue in the nation—and in Pinchot’s home state.

In the perspective of today, Pinchot had an ability, in the phrasing of his biographer, Char Miller, “to maintain what might seem like contradictory impulses—the desire to live simultaneously and within nature, to exult in its splendors while exploring its resources.” But in his titanic clash with Muir, Pinchot was cast as the bête noire of the movement he plausibly could claim to have helped create.

Muir was all about preservation and Pinchot was about wise or multiple uses of the land,” Douglas Brinkley, the Rice University historian who wrote about the PinchotMuir conflict in his 2010 The Wilderness Warrior, said in an interview. “The dispute was over what was conservation. Muir became a folk hero through the long shadow of the Sierra Club but Pinchot never had a legacy organization group.”

The venue of the clash was the Hetch Hetchy Valley in Yosemite National Park, but its implications extended nationwide and the forces at play continue to collide in Pennsylvania. Pinchot, a close advisor and friend to Theodore Roosevelt, was caught in the vise created by the moral passion of conservationists and the physical thirst of Californians. San Francisco wanted water, early environmentalists worshiped wilderness. There was no middle ground, though Pinchot was caught in the middle of the struggle.

It was, as the Library of Congress would characterize it a century later, “a division between those committed to preserving the wilderness and those more interested in efficient management of its use.” The two combatants had conflicting profiles: Pinchot was an insider, Muir was an outsider. Thus Muir claimed the moral high ground as the protector of the outdoors. The battle between the two men had its origins in Muir’s evolution to a view that, as Miller characterized it in his monumental 2001 Gifford Pinchot and the Making of Modern Environmentalism, “the practice of forestry and the preservation of wilderness were incompatible, a tentative conclusion that would harden into conviction in the first years of the new century.” The result was temporarily to place Pinchot, politically if not emotionally—and supremely awkwardly—in the same camp as his traditional opponents, business executives with a lust for land and lucre.

Pinchot saw this issue as a struggle between “the extreme desirability of preserving the Hetch Hetchy in its original beauty” against the legitimate water needs of San Francisco and other communities in the Bay area. Muir, in a letter to Pinchot, said the proposal to flood the valley to provide water for “the dear people” was “full of graft,” later characterizing it as a moral outrage and a mortal threat to wilderness values. It was a classic confrontation between a master of the political world and a mystic of the natural world.

The struggle wore on for years. Later Pinchot would tell a congressional hearing that “injury to Hetch Hetchy by substituting a lake for the present swampy shore of the valley…is altogether unimportant when compared with the benefits to be derived from its use from a reservoir.”

In the end, Hetch Hetchy was flooded and, though Pinchot remained prominent in conservation circles—he was advising Franklin Delano Roosevelt on these matters as they related to the future United Nations as late as the World War II years—his reputation was no longer unsullied.

The crosswinds of the Hetch Hetchy controversy—the issues it raised, the passions it ignited, the arguments it prompted—now blow as a gale through Pinchot’s home state. They are the prevailing winds of Pennsylvania.

A Step in the Right Direction

A true conservationist is a man who knows that the world is not given by his fathers, but borrowed from his children.

John J. Audubon

Coal once accounted for 60 percent of all electricity generated in Pennsylvania, a rate that has declined by more than half; today only a handful of large grid-connected coal-fired electric plants operate in the state. That represents a steep decline, though Homer City Generation said this spring that it would not follow through with tentative plans to deactivate its units in Indiana County. “This decreasing dependence on these sorts of plants shows we are going in the right direction in reducing climate-changing emissions from coal-fired plants,” said Hess, the former GOP environmental commissioner. “But it is mostly because of the competition between natural gas and coal. The problem is that we are now getting down to the point in the power sector that we can’t get additional big emission reductions. There aren’t more plants to close to give us those reductions. So we have to adopt other kinds of strategies.”

Pennsylvania has more than 86,000 miles of streams, more than any state in the lower 48. The miles of these waterways that can support brook trout are dwindling, in part because of climate change and in part because the invasion of the hemlock wooly adelgid insect has infected the shoreline hemlock trees that otherwise would provide shade for the streams.

This is only the latest incarnation of the centuries-long decline in the health of the state’s waterways. In the 18th century, the British army captain Harry Gordon pronounced the site of the confluence of Pittsburgh’s three rivers as “the most healthy, the most pleasant, the most commodious, the most fertile spot of Earth known to European people.” A century later, another British observer said that in Pittsburgh, “Man befouled the streams, bedraggled their banks, ripped up the cliffs, hacked down the trees, and dumped refuse in their stead.”

But the environmental crisis is not confined to western Pennsylvania. To take a random reading of air pollution in the state, Pennsylvania’s worst air quality on April 5 was in Mechanicsburg, outside Harrisburg, in the center of the state, followed by New Bloomfield, 23 miles away, according to IQ Air real-time figures. At the same time, Wilkes-Barre, with an average increased temperature of 3.3 degrees since 1970, substantially beats the average national rate of 2.6 degrees. So does State College, at an increase of 3 degrees.

Over the decades, the emphasis has changed from “conservation” to “stopping climate change,” with the threat of neighborhood contamination (the late 1970s), acid rain (the early 1980s), and the ozone hole (the mid 1980s) joined by global warming, a term introduced into the scientific and then the political lexicon when James Hansen, a NASA atmospheric expert warned a Congressional committee in 1988 that he and a set of climate modelers believed they could “confidently state that major greenhouse climate changes are a certainty.” He told the lawmakers that “the global warming predicted in the next 20 years will make the Earth warmer than it has been in the past 100,000 years.”

Opposition from an Unusual Coalition

To contemplate nature, magnificently garbed as it is in this country, is to restore peace to the mind, even if it does make one realize how small and petty and futile the human individual really is.

Harold Ickes

Many of the political tensions in Pennsylvania were visible in the debate that began last year—and became even more bitter this year—over RGGI. Gov. Wolf made becoming a part of the alliance of 10 New England and Middle Atlantic states—and, as a result reducing Pennsylvania’s greenhouse gas emissions by as many as 227 million tons by 2030—one of the top priorities of his final year in office.

The result was opposition by an unusual coalition of Republicans and labor unions, who argued that the governor’s plan would reduce jobs in the state.

“The ‘jobs-versus-environment’ framework is almost always part of these debates,” said Christopher Borick, a political scientist at Muhlenberg College in Allentown. “Environmental laws are for the public good—to protect the health and well being of individuals—so it is hard to argue against that. So what do you use as your argument? Jobs. It is sometimes a false choice, and often the environmentally sensitive approach can be a good economic choice. But politically, it is very powerful argument even if the reality isn’t the case.”

Last December, the Republican-controlled legislature passed a resolution that would halt the governor’s effort to join RGGI. The governor then exercised his veto, citing technicalities in the resolution and arguing that joining the group “is a vital step for Pennsylvania to reduce carbon emissions and achieve our climate goals.” When a stay issued by the Commonwealth Court expired in late April, the Wolf administration went ahead and published the regulation, and in less than a day the odd-couple coalition of coal unions and coal companies went to court to fight the order, which required operators of power plants fired by coal and natural gas to buy allowances for every ton of carbon dioxide they emitted.

“I want to give $150 million a year to a board headed by organized labor,” the governor, referring to a trust fund to aid individuals displaced by the transition to sustainable energy sources, told Inside Climate News as the controversy raged. “What don’t they like about this?”

In a separate interview, state Sen. Wayne Fontana, the chairman of the chamber’s Democratic Caucus and a member of the Game and Fisheries Committee, described the resistance mounted by Republicans in the legislature as “a wedge to use against the Democratic gubernatorial candidate in the fall.” He said the state has taken substantial steps to address environmental threats, arguing, “We have done a lot with lead in the water, we have beaten up air and water polluters.”

A Lack of Urgency

And so we live in a time when change comes rapidly—a time when much of that change is, at least for long periods, irrevocable. This is what makes our own task so urgent. It is not often that a generation is challenged, as we today are challenged. For what we fail to do—what we let go by default, can perhaps never be done.

Rachel Carson, accepting the Audubon Medal of the National Audubon Society in 1963

Now the challenge is global warming, which dwarfs the threat from 19th century industrial pollution and 20th century acid rain.

This past year did not have a silent spring when it came to the climate change issue. Indeed, the reports were more dire, the warnings more urgent, the lack of substantial attention more dangerous. The world, and Pennsylvania, face dramatic alternative outcomes from their actions or inaction. One choice might redound to cities underwater or lower energy consumption as a result of the creation of, in the characterization of the Intergovernmental Panel on Climate Change, of  “compact, walkable cities.” Another might be a continued reliance on private, gasoline-powered automobiles, trucks and buses or the “electrification of transport in combination with low-emission energy sources, and enhanced carbon uptake and storage using nature.”

The April report of the IPCC, the United Nations group that assesses science in relation to global warming, was sobering if not chilling. The bottom line: Net emissions are continuing to rise. “It’s now or never, if we want to limit global warming to 1.5°C [2.7°F] without immediate and deep emissions reductions across all sectors,” said Jim Skea, co-chair of the working group that produced the latest report, “it will be impossible.”

That will require what the IPCC working group co-chair Priyadarshi Shukla described as “the right policies, infrastructure and technology…to enable changes to our lifestyles and behavior.” And it will require a combination of policies and planning.

“We are opposed to long-term planning here in Pennsylvania,” said Professor Tarr of Carnegie Mellon University. “We react to crises, and we do so inadequately. People here generally have no sense of urgency about these kinds of issues.”

David Shribman served as editor of the Pittsburgh Post-Gazette for 16 years and won a Pulitzer Prize for his reporting on American political culture as Washington bureau chief of The Boston Globe. He now writes a nationally syndicated column, contributes a separate column to The Globe and Mail in Canada, and teaches American politics at both McGill University’s Max Bell School of Public Policy and Carnegie Mellon University.

WANG Huiyao: To Save Global Trade, Start Small

[from the Center for China and Globalization]

by WANG Huiyao (王辉耀), Founder of the Center for China and Globalization

The global economy is being rocked by war, sanctions and spiraling commodity prices—not to mention the ongoing strain of the pandemic, geopolitical tensions and climate change. These compounding risks present a serious challenge to the system of open trade that the World Trade Organization was designed to uphold. But it also offers a chance for the beleaguered organization, which is holding its first ministerial conference since 2017, to prove its continuing relevance.

The WTO has traditionally focused on combating protectionism—measures designed to insulate producers from international competition. Now, though, the biggest threats to free trade come from policies meant to safeguard national security and protect citizens from risks, such as those related to health, the environment or digital spaces.

Former WTO Director-General Pascal Lamy has called this growing use of export controls, cybersecurity laws, investment blacklists, reshoring incentives and the like “precautionism.” It’s been on the rise since the start of the pandemic, when many countries moved to restrict exports of medical supplies and other essentials. COVID-19 has also raised concerns about the vulnerability of supply chains, particularly those dependent on geopolitical rivals.

The world’s two biggest trading nations, the United States and China, have both engaged in precautionism. The U.S. is actively pursuing a policy of “friend-shoring”—shifting trade flows from potentially hostile countries to friendlier ones. China’s “dual circulation” strategy aims in part to reduce dependence on foreign imports, especially technology, while its government has long imposed limits on data flows in and out of the country.

With Russia’s invasion of Ukraine, the momentum toward friend-shoring has grown. Meanwhile, food shortages and surging prices have triggered another round of precautionary measures: Since the war began, 63 countries have imposed a more than 100 export restrictions on fertilizer and foodstuffs.

While the impulse driving such policies is understandable, the trend could cause great harm if allowed to run unchecked. It will increase inflation and depress global growth, especially if it involves costly redeployment of supply chains away from efficient producers such as China. A recent WTO study estimated that decoupling the global economy into “Western” and “Eastern” blocs would wipe out nearly 5% in output, the equivalent of $4 trillion.

As a recent study by the International Monetary Fund points out, the way to make global value chains more resilient is to diversify, not dismantle them. Turning away from open trade will only make states more vulnerable to economic shocks such as war, disease or crop failures.

The WTO is an obvious vehicle to rally collective action on these issues. However, like other global institutions, it has been weakened by years of deadlock. At this week’s meeting, countries should start to build positive momentum with some small but symbolically significant breakthroughs to show the WTO can still mobilize joint action.

Given current threats to food security, at the very least members should agree not to restrict exports of foodstuffs purchased for the World Food Programme. A step further would be a joint statement calling on members to keep trade in food and agricultural products open and avoid imposing unjustified export restrictions. There should also be closer coordination to smooth supply chains and clogged logistics channels.

Another low-hanging fruit is finally securing a  waiver covering intellectual property rights for COVID-19-related products. This proposal has languished for over 18 months but has now been redrafted to address concerns from the U.S. and European Union. Signing it would go some way to expanding global access to vaccines, which are still sorely needed in many parts of the world.

Beyond this week, the WTO secretariat and members need to develop a work program to reform the organization. This should include developing a framework to ensure that if states do take precautionary measures, they do so in a transparent, rules-based manner that does not slide into more harmful forms of protectionism.

Reviving the WTO’s defunct dispute settlement mechanism is a clear priority. Twenty-five members have agreed to an interim arrangement that would function in a similar way. More members should join this agreement, ideally including the U.S., and start negotiating the full restoration of a binding mechanism. They should also set clear criteria for carveouts for legitimate precautionary measures related to national security, healthcare and environmental issues.

No one should expect big breakthroughs in Geneva. But practical agreements on immediate priorities such food security and vaccines would at least help to reassert the WTO’s relevance and show that the world’s trading partners are not simply going to give up on multilateralism. At this dangerous moment, even small victories are welcome.

Climatology-Watching: Tyndall Centre for Climate Change Research

[from Tyndall Centre for Climate Change Research]

UK’s climate change readiness has made ‘significant progress’

by Renee Karunungan on May 4, 2022

There is significant progress in the UK for reporting and implementing climate change adaptation, according to a new study led by Tyndall UEA’s Katie Jenkins. Katie has created an Adaptation Inventory of adaptation actions happening based on official records of adaptation projects being implemented by both public and private sector, accompanied by  a systematic review of the peer-reviewed literature of adaptation case studies.

Adapting to climate change means taking action to prepare for and adjust to current and predicted effects of climate change. Adaptation plays an important role in managing past, present and future climate risk and impacts. However, there is an “adaptation gap” where the distance between existing adaptation efforts versus adaptation needs is widening, according to the United Nations Environment Programme’s Adaptation Gap Report. Tracking national adaptation plans is deemed critical to support future decision-making and drive future actions.

Studies of adaptation consider the UK at the forefront of adaptation planning, setting an early example with the Climate Change Act 2008 which contains a five-year cycle of adaptation planning, published as the UK Climate Change Risk Assessment. Evidence from the UK Climate Change Committee shows that adaptation action has failed to keep pace with increasing climate risks. 

According to the Committee’s assessment, adaptation planning for 2C and 4C global warming is not happening, and that the gap between future risks and planned adaptation has widened, delivering the minimum level of resilience.

Katie’s new Adaptation Inventory provides insight on what is currently being implemented, which helps policymakers and practitioners learn from existing knowledge and practical case studies.

“The Adaptation Inventory provides a consistent and easily searchable database which will continue to evolve. It can provide evidence on the specific types of adaptation implemented on the ground as well as provide more detailed insight into the specific examples of action being implemented. This has the potential to help and inform UK-based decision-making,” Katie said.

The Adaptation Inventory identifies and documents current and planned adaptation in the UK, and how it is being implemented through adaptation actions, the sectors where adaptation is occurring, and where the gaps remain. There were 360 adaptation actions identified in the Inventory, comprising 134 adaptation types. Out of these 360 adaptation actions, 80% have already been implemented.

The private sector accounts for 74% of the actions with water companies dominating. Regulatory frameworks, standards, and reporting requirements are key drivers required by water companies by the Regulator. For example, water companies are already required to plan their resilience to drought.

The most common types of adaptation actions are flood protection (12%), leakage reduction (4%), water metering (3%), property level flood protection (3%), operational improvements (3%), and back-up generators (3%). Most actions were categorized as structural and physical interventions. Other interventions were categorized as technological and ecosystem based. 

An example of a structural adaptation action is raising boat landings to address higher tides because of rising sea levels. For an example of technology, London Transport has installed air cooling units and mechanical chillers at two key busy tube stations to address heat stress. An ecosystem-based example  introduces barley straw to reservoirs to control blue green algae, more common with warmer summers.

The Adaptation Inventory also looks at the types of climate hazards being addressed. It found that 76% of the actions were in response to drought, 26% for extreme rainfall, 13% for flooding, and 11% for higher temperatures. One example of adaptation for drought is rainwater recovery using storage facilities available on the site, reducing the demand for fresh water during drought. For alleviating flooding, a water company is using afforestation. The London Underground has doubled the capacity of ventilation shafts on the Victoria line, which provide more air flow on hot days.

Education and “Chaos”: The Example of Climate Change

Students will have heard on read descriptions of “chaos theory” which try to capture the phenomenon that a small change “here” or now might involve a mega-change somewhere else or later on or both. In other words, tremendous turbulence could arise from overlooked minutiae in some other region or domain. Chaos here does not mean lawless…it means lawful but in surprising ways, like a pendulum swinging from another pendulum where the laws of pendular motion are still in effect but the motions are “jumpy.”

This can be described as follows:

Chaos theory is a branch of mathematics focusing on the study of chaos—states of dynamical systems whose apparently-random states of disorder and irregularities are often governed by deterministic laws that are highly sensitive to initial conditions. Chaos theory is an interdisciplinary theory stating that, within the apparent randomness of chaotic complex systems, there are underlying patterns, constant feedback loops, repetition, self-similarity, fractals, and self-organization.

The butterfly effect, an underlying principle of chaos, describes how a small change in one state of a deterministic nonlinear system can result in large differences in a later state (meaning that there is sensitive dependence on initial conditions). A metaphor for this behavior is that a butterfly flapping its wings in China can cause a hurricane in Texas.

Blaise Pascal (17th century) gives us the example of “Cleopatra’s nose.” Had her nose been longer, Pascal muses, she would presumably have not been so beautiful and this could have altered romantic entanglements and the behavior of rival Roman generals and world history might have moved along different pathways completely (recall Caesar and Cleopatra, the play).

All of this “strange science” applies to climate change.

In the Winter 2019/20 issue of Options, from the International institute for Applied Systems Analysis (IIASA, Austria headquarters), there’s a short piece that shows you how climate change has such “chaos-type” features which could “turbo-charge” changes already expected:

Will Forests Let Us Down?

Current climate models assume that forests will continue to remove greenhouse gases from the atmosphere at their current rate.

A study by an international team including researchers from IIASA, however, indicates that this uptake capacity could be strongly limited by soil phosphorous availability. If this scenario proves true, the Earth’s climate would heat up much faster than previously assumed.

(Options, Winter 2019/20 issue, IIASA, page 5, “News in Brief”)

Students should glimpse something here that points to a “deep structure.”
Climate scientists and climate modelers at this time are trying to re-examine and re-jigger predictions to include overlooked details that could add “chaotic dynamics” to the predictions. Knowledge itself is evolving and if you add knowledge changes and revisions to model ones, you have to conclude that even with this fantastic level of human ingenuity and scientific intricacy, we “see the world through a glass, darkly” because the facts, models, chaos math, overviews, are themselves in “interactive flux.”

Essay 110: Education and Famine Analysis

The great historian Élie Halévy’s (died in 1937) History of the English People in the Nineteenth Century, a multi-volume classic, gives us a sense of nineteenth century famine dynamics for the 1840s, which combines failed harvests and failed incomes and failed speculations together:

“It was a ‘dearth’ (i.e., scarcity)—a crisis belonging to the old order—the last ‘dearth,’ in fact, Europe had known up to the present day (i.e., before 1937). The unsatisfactory harvest of 1845 was followed by the disastrous autumn of 1846. The potato disease was worse than it had been the year before. The cereal harvest, moderately good in 1845, was a failure not only in the United Kingdom, but in France and throughout Western Europe. In 1845, Great Britain could still purchase corn even in Ireland, while the Irish poor were starving to death. Nothing of the kind was possible at the end of 1846.

Britain could not obtain wheat from France or Germany. In short, it was no longer Ireland alone, but the whole of Western Europe that had to be saved from famine.

“The United Kingdom, France, and Germany must import Russian and American wheat, the only sources available to supply the deficit.

“In consequence the price of wheat rose from 50 shillings and 2d. on August 22 to 65 shillings and 7d. on November 18. The price of wheat rose once more. It exceeded 78 shillings in March.

“In Germany and France, where another ‘jacquerie’ seemed to have begun, hunger caused an outbreak of rioting. The same happened in Scotland and the south of England…but England suffered in common with Ireland and Continental Europe, and a drain on English gold began, to pay for the Russian and American wheat.

“Later there was a fall of 50% in four months. The corn factors (i.e., corn dealers) who for months had been gambling on a rise had no time to retrace their steps and were ruined at a single blow.” (“Commerical Failures in 1847,” Eclectic Review, December 1847)

(Élie Halévy, “Victorian Years (1841-1895),” Halévy’s History of the English People in the Nineteenth Century, Volume 4, pages 191-193, Ernest Benn Ltd., 1970)

Note that in British usage, “corn” refers to all feed grains (primarily wheat), not corn (in the American sense) or maize. For example, see the Corn Laws.

We sense from Halévy’s description of the “food insecurity” of the nineteenth century in Europe, why the Revolutions of 1848 were to a large extent severe food riots and how food poverty and speculation interacted with risk and uncertainty prevailing.

This should be read and pondered in connection with Prof. Amartya Sen’s classic from 1981, Poverty and Famines, which highlights the famine of income and buying power, as opposed to famines based on outright crop failures. Pearl Buck’s classic novel, The Good Earth (1931), fits this topic set, as it analyzes in human terms the pattern of Chinese famines. It is interesting to note, parenthetically, that the movie of The Good Earth could not feature Chinese actors in lead roles due to racial craziness at the time. Stepping back, we see a world of food insecurity aggravated by the spectre of racism further poisoning social relations worldwide.

Halévy states: “It was a ‘dearth’ (i.e., scarcity)—a crisis belonging to the old order—the last ‘dearth,’ in fact, Europe had known up to the present day…”.

It would be instructive to ponder whether this really was “a crisis belonging to the old order” given the catastrophes and food crises that could come with climate change from 2019 on out. Will we have “global ‘dearths’”?

Essay 108: Early View Alert: Water Resources Research

from the American Geophysical Union’s journals:

Research Articles

Modeling the Snow Depth Variability with a High-Resolution Lidar Data Set and Nonlinear Terrain Dependency

by T. Skaugen & K. Melvold

Summary: Using airborne laser, 400 million snow depth measurements at Hardangervidda in Southern Norway have been collected. The amount of data has made in-depth studies of the spatial distribution of snow and its interaction with the terrain and vegetation possible. We find that the terrain variability, expressed by the square slope, the average amount of snow, and whether the terrain is vegetated or not, largely explains the variation of snow depth. With this information it is possible to develop equations that predict snow depth variability that can be used in environmental models, which again are used for important tasks such as flood forecasting and hydropower planning. One major advantage is that these equations can be determined from the data that are, in principle, available everywhere, provided there exists a detailed digital model of the terrain.

[Archived PDF article]

Phosphorus Transport in Intensively Managed Watersheds

by Christine L. Dolph, Evelyn Boardman, Mohammad Danesh-Yazdi, Jacques C. Finlay, Amy T. Hansen, Anna C. Baker & Brent Dalzell

Abstract: When phosphorus from farm fertilizer, eroded soil, and septic waste enters our water, it leads to problems like toxic algae blooms, fish kills, and contaminated drinking supplies. In this study, we examine how phosphorus travels through streams and rivers of farmed areas. In the past, soil lost from farm fields was considered the biggest contributor to phosphorus pollution in agricultural areas, but our study shows that phosphorus originating from fertilizer stores in the soil and from crop residue, as well as from soil eroded from sensitive ravines and bluffs, contributes strongly to the total amount of phosphorus pollution in agricultural rivers. We also found that most phosphorus leaves farmed watersheds during the very highest river flows. Increased frequency of large storms due to climate chaos will therefore likely worsen water quality in areas that are heavily loaded with phosphorus from farm fertilizers. Protecting water in agricultural watersheds will require knowledge of the local landscape along with strategies to address (1) drivers of climate chaos, (2) reduction in the highest river flows, and (3) ongoing inputs and legacy stores of phosphorus that are readily transported across land and water.

[Archived PDF of article]

Detecting the State of the Climate System via Artificial Intelligence to Improve Seasonal Forecasts and Inform Reservoir Operations

by Matteo Giuliani, Marta Zaniolo, Andrea Castelletti, Guido Davoli & Paul Block

Abstract: Increasingly variable hydrologic regimes combined with more frequent and intense extreme events are challenging water systems management worldwide. These trends emphasize the need of accurate medium- to long-term predictions to timely prompt anticipatory operations. Despite in some locations global climate oscillations and particularly the El Niño Southern Oscillation (ENSO) may contribute to extending forecast lead times, in other regions there is no consensus on how ENSO can be detected, and used as local conditions are also influenced by other concurrent climate signals. In this work, we introduce the Climate State Intelligence framework to capture the state of multiple global climate signals via artificial intelligence and improve seasonal forecasts. These forecasts are used as additional inputs for informing water system operations and their value is quantified as the corresponding gain in system performance. We apply the framework to the Lake Como basin, a regulated lake in northern Italy mainly operated for flood control and irrigation supply. Numerical results show the existence of notable teleconnection patterns dependent on both ENSO and the North Atlantic Oscillation over the Alpine region, which contribute in generating skillful seasonal precipitation and hydrologic forecasts. The use of this information for conditioning the lake operations produces an average 44% improvement in system performance with respect to a baseline solution not informed by any forecast, with this gain that further increases during extreme drought episodes. Our results also suggest that observed preseason sea surface temperature anomalies appear more valuable than hydrologic-based seasonal forecasts, producing an average 59% improvement in system performance.

[Archived PDF of article]

Landscape Water Storage and Subsurface Correlation from Satellite Surface Soil Moisture and Precipitation Observations

by Daniel J. Short Gianotti, Guido D. Salvucci, Ruzbeh Akbar, Kaighin A. McColl, Richard Cuenca & Dara Entekhabi

Abstract: Surface soil moisture measurements are typically correlated to some degree with changes in subsurface soil moisture. We calculate a hydrologic length scale, λ, which represents (1) the mean-state estimator of total column water changes from surface observations, (2) an e-folding length scale for subsurface soil moisture profile covariance fall-off, and (3) the best second-moment mass-conserving surface layer thickness for a simple bucket model, defined by the data streams of satellite soil moisture and precipitation retrievals. Calculations are simple, based on three variables: the autocorrelation and variance of surface soil moisture and the variance of the net flux into the column (precipitation minus estimated losses), which can be estimated directly from the soil moisture and precipitation time series. We develop a method to calculate the lag-one autocorrelation for irregularly observed time series and show global surface soil moisture autocorrelation. λ is driven in part by local hydroclimate conditions and is generally larger than the 50-mm nominal radiometric length scale for the soil moisture retrievals, suggesting broad subsurface correlation due to moisture drainage. In all but the most arid regions, radiometric soil moisture retrievals provide more information about ecosystem-relevant water fluxes than satellite radiometers can explicitly “see”; lower-frequency radiometers are expected to provide still more statistical information about subsurface water dynamics.

[Archived PDF of article]

Process-Guided Deep Learning Predictions of Lake Water Temperature

by Jordan S. Read, Xiaowei Jia, Jared Willard, Alison P. Appling, Jacob A. Zwart, Samantha K. Oliver, Anuj Karpatne, Gretchen J. A. Hansen, Paul C. Hanson, William Watkins, Michael Steinbach & Vipin Kumar

Abstract: The rapid growth of data in water resources has created new opportunities to accelerate knowledge discovery with the use of advanced deep learning tools. Hybrid models that integrate theory with state-of-the art empirical techniques have the potential to improve predictions while remaining true to physical laws. This paper evaluates the Process-Guided Deep Learning (PGDL) hybrid modeling framework with a use-case of predicting depth-specific lake water temperatures. The PGDL model has three primary components: a deep learning model with temporal awareness (long short-term memory recurrence), theory-based feedback (model penalties for violating conversation of energy), and model pre-training to initialize the network with synthetic data (water temperature predictions from a process-based model). In situ water temperatures were used to train the PGDL model, a deep learning (DL) model, and a process-based (PB) model. Model performance was evaluated in various conditions, including when training data were sparse and when predictions were made outside of the range in the training data set. The PGDL model performance (as measured by root-mean-square error (RMSE)) was superior to DL and PB for two detailed study lakes, but only when pretraining data included greater variability than the training period. The PGDL model also performed well when extended to 68 lakes, with a median RMSE of 1.65 °C during the test period (DL: 1.78 °C, PB: 2.03 °C; in a small number of lakes PB or DL models were more accurate). This case-study demonstrates that integrating scientific knowledge into deep learning tools shows promise for improving predictions of many important environmental variables.

[Archived PDF of article]

Adjustment of Radar-Gauge Rainfall Discrepancy Due to Raindrop Drift and Evaporation Using the Weather Research and Forecasting Model and Dual-Polarization Radar

by Qiang Dai, Qiqi Yang, Dawei Han, Miguel A. Rico-Ramirez & Shuliang Zhang

Abstract: Radar-gauge rainfall discrepancies are considered to originate from radar rainfall measurements while ignoring the fact that radar observes rain aloft while a rain gauge measures rainfall on the ground. Observations of raindrops observed aloft by weather radars consider that raindrops fall vertically to the ground without changing in size. This premise obviously does not stand because raindrop location changes due to wind drift and raindrop size changes due to evaporation. However, both effects are usually ignored. This study proposes a fully formulated scheme to numerically simulate both raindrop drift and evaporation in the air and reduces the uncertainties of radar rainfall estimation. The Weather Research and Forecasting model is used to simulate high-resolution three-dimensional atmospheric fields. A dual-polarization radar retrieves the raindrop size distribution for each radar pixel. Three schemes are designed and implemented using the Hameldon Hill radar in Lancashire, England. The first considers only raindrop drift, the second considers only evaporation, and the last considers both aspects. Results show that wind advection can cause a large drift for small raindrops. Considerable loss of rainfall is observed due to raindrop evaporation. Overall, the three schemes improve the radar-gauge correlation by 3.2%, 2.9%, and 3.8% and reduce their discrepancy by 17.9%, 8.6%, and 21.7%, respectively, over eight selected events. This study contributes to the improvement of quantitative precipitation estimation from radar polarimetry and allows a better understanding of precipitation processes.

[Archived PDF of article]

The Role of Collapsed Bank Soil on Tidal Channel Evolution: A Process-Based Model Involving Bank Collapse and Sediment Dynamics

by K. Zhao, Z. Gong, F. Xu, Z. Zhou, C. K. Zhang, G. M. E. Perillo & G. Coco

Abstract: We develop a process-based model to simulate the geomorphodynamic evolution of tidal channels, considering hydrodynamics, flow-induced bank erosion, gravity-induced bank collapse, and sediment dynamics. A stress-deformation analysis and the Mohr-Coulomb criterion, calibrated through previous laboratory experiments, are included in a model simulating bank collapse. Results show that collapsed bank soil plays a primary role in the dynamics of bank retreat. For bank collapse with small bank height, tensile failure in the middle of the bank (Stage I), tensile failure on the bank top (Stage II), and sectional cracking from bank top to the toe (Stage III) are present sequentially before bank collapse occurs. A significant linear relation is observed between bank height and the contribution of bank collapse to bank retreat. Contrary to flow-induced bank erosion, bank collapse prevents further widening since the collapsed bank soil protects the bank from direct bank erosion. The bank profile is linear or slightly convex, and the planimetric shape of tidal channels (gradually decreasing in width landward) is similar when approaching equilibrium, regardless of the consideration of bank erosion and collapse. Moreover, the simulated width-to-depth ratio in all runs is comparable with observations from the Venice Lagoon. This indicates that the equilibrium configuration of tidal channels depends on hydrodynamic conditions and sediment properties, while bank erosion and collapse greatly affect the transient behavior (before equilibrium) of the tidal channels. Overall, this contribution highlights the importance of collapsed bank soil in investigating tidal channel morphodynamics using a combined perspective of geotechnics and soil mechanics.

[Archived PDF of article]

A Physically Based Method for Soil Evaporation Estimation by Revisiting the Soil Drying Process

by Yunquan Wang, Oliver Merlin, Gaofeng Zhu & Kun Zhang

Abstract: While numerous models exist for soil evaporation estimation, they are more or less empirically based either in the model structure or in the determination of introduced parameters. The main difficulty lies in representing the water stress factor, which is usually thought to be limited by capillarity-supported water supply or by vapor diffusion flux. Recent progress in understanding soil hydraulic properties, however, have found that the film flow, which is often neglected, is the dominant process under low moisture conditions. By including the impact of film flow, a reexamination on the typical evaporation process found that this usually neglected film flow might be the dominant process for supporting the Stage II evaporation (i.e., the fast falling rate stage), besides the generally accepted capillary flow-supported Stage I evaporation and the vapor diffusion-controlled Stage III evaporation. A physically based model for estimating the evaporation rate was then developed by parameterizing the Buckingham-Darcy’s law. Interestingly, the empirical Bucket model was found to be a specific form of the proposed model. The proposed model requires the in-equilibrium relative humidity as the sole input for representing water stress and introduces no adjustable parameter in relation to soil texture. The impact of vapor diffusion was also discussed. Model testing with laboratory data yielded an excellent agreement with observations for both thin soil and thick soil column evaporation experiments. Model evaluation at 15 field sites generally showed a close agreement with observations, with a great improvement in the lower range of evaporation rates in comparison with the widely applied Priestley and Taylor Jet Propulsion Laboratory model.

[Archived PDF of article]

Floodplain Land Cover and Flow Hydrodynamic Control of Overbank Sedimentation in Compound Channel Flows

by Carmelo Juez, C. Schärer, H. Jenny, A. J. Schleiss & M. J. Franca

Abstract: Overbank sedimentation is predominantly due to fine sediments transported under suspension that become trapped and settle in floodplains when high-flow conditions occur in rivers. In a compound channel, the processes of exchanging water and fine sediments between the main channel and floodplains regulate the geomorphological evolution and are crucial for the maintenance of the ecosystem functions of the floodplains. These hydrodynamic and morphodynamic processes depend on variables such as the flow-depth ratio between the water depth in the main channel and the water depth in the floodplain, the width ratio between the width of the main channel and the width of the floodplain, and the floodplain land cover characterized by the type of roughness. This paper examines, by means of laboratory experiments, how these variables are interlinked and how the deposition of sediments in the compound channel is jointly determined by them. The combination of these compound channel characteristics modulates the production of vertically axised large turbulent vortical structures in the mixing interface. Such vortical structures determine the water mass exchange between the main channel and the floodplain, conditioning in turn the transport of sediment particles conveyed in the water, and, therefore, the resulting overbank sedimentation. The existence and pattern of sedimentation are conditioned by both the hydrodynamic variables (the flow-depth ratio and the width ratio) and the floodplain land cover simulated in terms of smooth walls, meadow-type roughness, sparse-wood-type roughness, and dense-wood-type roughness.

[Archived PDF of article]

Identifying Actionable Compromises: Navigating Multi-city Robustness Conflicts to Discover Cooperative Safe Operating Spaces for Regional Water Supply Portfolios

by D. F. Gold, P. M. Reed, B. C. Trindade & G. W. Characklis

Summary: Cooperation among neighboring urban water utilities can help water managers face challenges stemming from climate change and population growth. Water utilities can cooperate by coordinating water transfers and water restrictions in times of water scarcity (drought) so that water is provided to areas that need it most. In order to successfully implement these policies, however, cooperative partners must find a compromise that is acceptable to all regional actors, a task complicated by asymmetries in resources and risks often present in regional systems. The possibility of deviations from agreed upon actions is another complicating factor that has not been addressed in water resources literature. Our study focuses on four urban water utilities in the Research Triangle region of North Carolina who are investigating cooperative drought mitigation strategies. We contribute a framework that includes the use of simulation models, optimization algorithms, and statistical tools to aid cooperating partners in finding acceptable compromises that are tolerant modest deviations in planned actions. Our results can be used by regional utilities to avoid or alleviate potential planning conflicts and are broadly applicable to urban regional water supply planning across the globe.

[Archived PDF of article]

Detecting Changes in River Flow Caused by Wildfires, Storms, Urbanization, Regulation, and Climate across Sweden

by Berit Arheimer & Göran Lindström

Abstract: Changes in river flow may appear from shifts in land cover, constructions in the river channel, and climatic change, but currently there is a lack of understanding of the relative importance of these drivers. Therefore, we collected gauged river flow time series from 1961 to 2018 from across Sweden for 34 disturbed catchments to quantify how the various types of disturbances have affected river flow. We used trend analysis and the differences in observations versus hydrological modeling to explore the effects on river flow from (1) land cover changes from wildfires, storms, and urbanization; (2) dam constructions with regulations for hydropower production; and (3) climate-change impact in otherwise undisturbed catchments. A mini model ensemble, consisting of three versions of the S-HYPE model, was used, and the three models gave similar results. We searched for changes in annual and daily stream flow, seasonal flow regime, and flow duration curves. The results show that regulation of river flow has the largest impact, reducing spring floods with up to 100% and increasing winter flow by several orders of magnitude, with substantial effects transmitted far downstream. Climate changed the total river flow up to 20%. Tree removal by wildfires and storms has minor impacts at medium and large scales. Urbanization, on the contrary, showed a 20% increase in high flows also at medium scales. This study emphasizes the benefits of combining observed time series with numerical modeling to exclude the effect of varying weather conditions, when quantifying the effects of various drivers on long-term streamflow shifts.

[Archived PDF of article]

Assessing the Feasibility of Satellite-Based Thresholds for Hydrologically Driven Landsliding

by Matthew A. Thomas, Brian D. Collins & Benjamin B. Mirus

Summary: Soil wetness and rainfall contribute to landslides across the world. Using soil moisture sensors and rain gauges, these environmental conditions have been monitored at numerous points across the Earth’s surface to define threshold conditions, above which landsliding should be expected for a localized area. Satellite-based technologies also deliver estimates of soil wetness and rainfall, potentially offering an approach to develop thresholds as part of landslide warning systems over larger spatial scales. To evaluate the potential for using satellite-based measurements for landslide warning, we compare the accuracy of landslide thresholds defined with ground- versus satellite-based soil wetness and rainfall information. We find that the satellite-based data over-predict soil wetness during the time of year when landslides are most likely to occur, resulting in thresholds that also over-predict the potential for landslides relative to thresholds informed by direct measurements on the ground. Our results encourage the installation of more ground-based monitoring stations in landslide-prone settings and the cautious use of satellite-based data when more direct measurements are not available.

[Archived PDF of article]

Modeling the Translocation and Transformation of Chemicals in the Soil-Plant Continuum: A Dynamic Plant Uptake Module for the HYDRUS Model

by Giuseppe Brunetti, Radka Kodešová & Jiří Šimůnek

Abstract: Food contamination is responsible for thousands of deaths worldwide every year. Plants represent the most common pathway for chemicals into the human and animal food chain. Although existing dynamic plant uptake models for chemicals are crucial for the development of reliable mitigation strategies for food pollution, they nevertheless simplify the description of physicochemical processes in soil and plants, mass transfer processes between soil and plants and in plants, and transformation in plants. To fill this scientific gap, we couple a widely used hydrological model (HYDRUS) with a multi-compartment dynamic plant uptake model, which accounts for differentiated multiple metabolization pathways in plant’s tissues. The developed model is validated first theoretically and then experimentally against measured data from an experiment on the translocation and transformation of carbamazepine in three vegetables. The analysis is further enriched by performing a global sensitivity analysis on the soilplant model to identify factors driving the compound’s accumulation in plants’ shoots, as well as to elucidate the role and the importance of soil hydraulic properties on the plant uptake process. Results of the multilevel numerical analysis emphasize the model’s flexibility and demonstrate its ability to accurately reproduce physicochemical processes involved in the dynamic plant uptake of chemicals from contaminated soils.

[Archived PDF of article]

Physical Controls on Salmon Redd Site Selection in Restored Reaches of a Regulated, Gravel-Bed River

by Lee R. Harrison, Erin Bray, Brandon Overstreet, Carl J. Legleiter, Rocko A. Brown, Joseph E. Merz, Rosealea M. Bond, Colin L. Nicol & Thomas Dunne

Abstract: Large-scale river restoration programs have emerged recently as a tool for improving spawning habitat for native salmonids in highly altered river ecosystems. Few studies have quantified the extent to which restored habitat is utilized by salmonids, which habitat features influence redd site selection, or the persistence of restored habitat over time. We investigated fall-run Chinook salmon spawning site utilization and measured and modeled corresponding habitat characteristics in two restored reaches: a reach of channel and floodplain enhancement completed in 2013 and a reconfigured channel and floodplain constructed in 2002. Redd surveys demonstrated that both restoration projects supported a high density of salmon redds, 3 and 14 years following restoration. Salmon redds were constructed in coarse gravel substrates located in areas of high sediment mobility, as determined by measurements of gravel friction angles and a grain entrainment model. Salmon redds were located near transitions between pool-riffle bedforms in regions of high predicted hyporheic flows. Habitat quality (quantified as a function of stream hydraulics) and hyporheic flow were both strong predictors of redd occurrence, though the relative roles of these variables differed between sites. Our findings indicate that physical controls on redd site selection in restored channels were similar to those reported for natural channels elsewhere. Our results further highlight that in addition to traditional habitat criteria (e.g., water depth, velocity, and substrate size), quantifying sediment texture and mobility, as well as intragravel flow, provides a more complete understanding of the ecological benefits provided by river restoration projects.

[Archived PDF of article]

Mountain-Block Recharge: A Review of Current Understanding

by Katherine H. Markovich, Andrew H. Manning, Laura E. Condon & Jennifer C. McIntosh

Abstract: Mountain-block recharge (MBR) is the subsurface inflow of groundwater to lowland aquifers from adjacent mountains. MBR can be a major component of recharge but remains difficult to characterize and quantify due to limited hydrogeologic, climatic, and other data in the mountain block and at the mountain front. The number of MBR-related studies has increased dramatically in the 15 years since the last review of the topic was conducted by Wilson and Guan (2004), generating important advancements. We review this recent body of literature, summarize current understanding of factors controlling MBR, and provide recommendations for future research priorities. Prior to 2004, most MBR studies were performed in the southwestern United States. Since then, numerous studies have detected and quantified MBR in basins around the world, typically estimating MBR to be 5–50% of basin-fill aquifer recharge. Theoretical studies using generic numerical modeling domains have revealed fundamental hydrogeologic and topographic controls on the amount of MBR and where it originates within the mountain block. Several mountain-focused hydrogeologic studies have confirmed the widespread existence of mountain bedrock aquifers hosting considerable groundwater flow and, in some cases, identified the occurrence of interbasin flow leaving headwater catchments in the subsurface—both of which are required for MBR to occur. Future MBR research should focus on the collection of high-priority data (e.g., subsurface data near the mountain front and within the mountain block) and the development of sophisticated coupled models calibrated to multiple data types to best constrain MBR and predict how it may change in response to climate warming.

[Archived PDF of article]

An Adjoint Sensitivity Model for Steady-State Sequentially Coupled Radionuclide Transport in Porous Media

by Mohamed Hayek, Banda S. RamaRao & Marsh Lavenue

Abstract: This work presents an efficient mathematical/numerical model to compute the sensitivity coefficients of a predefined performance measure to model parameters for one-dimensional steady-state sequentially coupled radionuclide transport in a finite heterogeneous porous medium. The model is based on the adjoint sensitivity approach that offers an elegant and computationally efficient alternative way to compute the sensitivity coefficients. The transport parameters include the radionuclide retardation factors due to sorption, the Darcy velocity, and the effective diffusion/dispersion coefficients. Both continuous and discrete adjoint approaches are considered. The partial differential equations associated with the adjoint system are derived based on the adjoint state theory for coupled problems. Physical interpretations of the adjoint states are given in analogy to results obtained in the theory of groundwater flow. For the homogeneous case, analytical solutions for primary and adjoint systems are derived and presented in closed forms. Numerically calculated solutions are compared to the analytical results and show excellent agreements. Insights from sensitivity analysis are discussed to get a better understanding of the values of sensitivity coefficients. The sensitivity coefficients are also computed numerically by finite differences. The numerical sensitivity coefficients successfully reproduce the analytically derived sensitivities based on adjoint states. A derivative-based global sensitivity method coupled with the adjoint state method is presented and applied to a real field case represented by a site currently being considered for underground nuclear storage in Northern Switzerland, “Zürich Nordost,” to demonstrate the proposed method. The results show the advantage of the adjoint state method compared to other methods in term of computational effort.

[Archived PDF of article]

Hydraulic Reconstruction of the 1818 Giétro Glacial Lake Outburst Flood

by C. Ancey, E. Bardou, M. Funk, M. Huss, M. A. Werder & T. Trewhela

Summary: Every year, natural and man-made dams fail and cause flooding. For public authorities, estimating the risk posed by dams is essential to good risk management. Efficient computational tools are required for analyzing flood risk. Testing these tools is an important step toward ensuring their reliability and performance. Knowledge of major historical floods makes it possible, in principle, to benchmark models, but because historical data are often incomplete and fraught with potential inaccuracies, validation is seldom satisfactory. Here we present one of the few major historical floods for which information on flood initiation and propagation is available and detailed: the Giétro flood. This flood occurred in June 1818 and devastated the Drance Valley in Switzerland. In the spring of that year, ice avalanches blocked the valley floor and formed a glacial lake, whose volume is today estimated at 25×106 m3. The local authorities initiated protection works: A tunnel was drilled through the ice dam, and about half of the stored water volume was drained in 2.5 days. On 16 June 1818, the dam failed suddenly because of significant erosion at its base; this caused a major flood. This paper presents a numerical model for estimating flow rates, velocities, and depths during the dam drainage and flood flow phases. The numerical results agree well with historical data. The flood reconstruction shows that relatively simple models can be used to estimate the effects of a major flood with good accuracy.

[Archived PDF of article]

The Representation of Hydrological Dynamical Systems Using Extended Petri Nets (EPN)

by Marialaura Bancheri, Francesco Serafin & Riccardo Rigon

Abstract: This work presents a new graphical system to represent hydrological dynamical models and their interactions. We propose an extended version of the Petri Nets mathematical modeling language, the Extended Petri Nets (EPN), which allows for an immediate translation from the graphics of the model to its mathematical representation in a clear way. We introduce the principal objects of the EPN representation (i.e., places, transitions, arcs, controllers, and splitters) and their use in hydrological systems. We show how to cast hydrological models in EPN and how to complete their mathematical description using a dictionary for the symbols and an expression table for the flux equations. Thanks to the compositional property of EPN, we show how it is possible to represent either a single hydrological response unit or a complex catchment where multiple systems of equations are solved simultaneously. Finally, EPN can be used to describe complex Earth system models that include feedback between the water, energy, and carbon budgets. The representation of hydrological dynamical systems with EPN provides a clear visualization of the relations and feedback between subsystems, which can be studied with techniques introduced in nonlinear systems theory and control theory.

[Archived PDF of article]

A Regularization Approach to Improve the Sequential Calibration of a Semidistributed Hydrological Model

by A. de Lavenne, V. Andréassian, G. Thirel, M.-H. Ramos & C. Perrin

Abstract: In semidistributed hydrological modeling, sequential calibration usually refers to the calibration of a model by considering not only the flows observed at the outlet of a catchment but also the different gauging points inside the catchment from upstream to downstream. While sequential calibration aims to optimize the performance at these interior gauged points, we show that it generally fails to improve performance at ungauged points. In this paper, we propose a regularization approach for the sequential calibration of semidistributed hydrological models. It consists in adding a priori information on optimal parameter sets for each modeling unit of the semi-distributed model. Calibration iterations are then performed by jointly maximizing simulation performance and minimizing drifts from the a priori parameter sets. The combination of these two sources of information is handled by a parameter k to which the method is quite sensitive. The method is applied to 1,305 catchments in France over 30 years. The leave-one-out validation shows that, at locations considered as ungauged, model simulations are significantly improved (over all the catchments, the median KGE criterion is increased from 0.75 to 0.83 and the first quartile from 0.35 to 0.66), while model performance at gauged points is not significantly impacted by the use of the regularization approach. Small catchments benefit most from this calibration strategy. These performances are, however, very similar to the performances obtained with a lumped model based on similar conceptualization.

[Archived PDF of article]

Proneness of European Catchments to Multiyear Streamflow Droughts

by Manuela I. Brunner & Lena M. Tallaksen

Summary: Droughts lasting longer than 1 year can have severe ecological, social, and economic impacts. They are characterized by below-average flows, not only during the low-flow period but also in the high-flow period when water stores such as groundwater or artificial reservoirs are usually replenished. Limited catchment storage might worsen the impacts of droughts and make water management more challenging. Knowledge on the occurrence of multiyear drought events enables better adaptation and increases preparedness. In this study, we assess the proneness of European catchments to multiyear droughts by simulating long discharge records. Our findings show that multiyear drought events mainly occur in regions where the discharge seasonality is mostly influenced by rainfall, whereas catchments whose seasonality is dominated by melt processes are less affected. The strong link between the proneness of a catchment to multiyear events and its discharge seasonality leads to the conclusion that future changes toward less snow storage and thus less snow melt will increase the probability of multiyear drought occurrence.

[Archived PDF of article]

Equifinality and Flux Mapping: A New Approach to Model Evaluation and Process Representation under Uncertainty

by Sina Khatami, Murray C. Peel, Tim J. Peterson & Andrew W. Western

Abstract: Uncertainty analysis is an integral part of any scientific modeling, particularly within the domain of hydrological sciences given the various types and sources of uncertainty. At the center of uncertainty rests the concept of equifinality, that is, reaching a given endpoint (finality) through different pathways. The operational definition of equifinality in hydrological modeling is that various model structures and/or parameter sets (i.e., equal pathways) are equally capable of reproducing a similar (not necessarily identical) hydrological outcome (i.e., finality). Here we argue that there is more to model equifinality than model structures/parameters, that is, other model components can give rise to model equifinality and/or could be used to explore equifinality within model space. We identified six facets of model equifinality, namely, model structure, parameters, performance metrics, initial and boundary conditions, inputs, and internal fluxes. Focusing on model internal fluxes, we developed a methodology called flux mapping that has fundamental implications in understanding and evaluating model process representation within the paradigm of multiple working hypotheses. To illustrate this, we examine the equifinality of runoff fluxes of a conceptual rainfall-runoff model for a number of different Australian catchments. We demonstrate how flux maps can give new insights into the model behavior that cannot be captured by conventional model evaluation methods. We discuss the advantages of flux space, as a subspace of the model space not usually examined, over parameter space. We further discuss the utility of flux mapping in hypothesis generation and testing, extendable to any field of scientific modeling of open complex systems under uncertainty.

[Archived PDF of article]

Role of Extreme Precipitation and Initial Hydrologic Conditions on Floods in Godavari River Basin, India

by Shailesh Garg & Vimal Mishra

Abstract: Floods are the most frequent natural calamity in India. The Godavari river basin (GRB) witnessed several floods in the past 50 years. Notwithstanding the large damage and economic loss, the role of extreme precipitation and antecedent moisture conditions on floods in the GRB remains unexplored. Using the observations and the well-calibrated Variable Infiltration Capacity model, we estimate the changes in the extreme precipitation and floods in the observed (1955–2016) and projected future (2071–2100) climate in the GRB. We evaluate the role of initial hydrologic conditions and extreme precipitation on floods in both observed and projected future climate. We find a statistically significant increase in annual maximum precipitation for the catchments upstream of four gage stations during the 1955–2016 period. However, the rise in annual maximum streamflow at all the four gage stations in GRB was not statistically significant. The probability of floods driven by extreme precipitation (PFEP) varies between 0.55 and 0.7 at the four gage stations of the GRB, which declines with the size of the basins. More than 80% of extreme precipitation events that cause floods occur on wet antecedent moisture conditions at all the four locations in the GRB. The frequency of extreme precipitation events is projected to rise by two folds or more (under RCP 8.5) in the future (2071–2100) at all four locations. However, the increased frequency of floods under the future climate will largely be driven by the substantial rise in the extreme precipitation events rather than wet antecedent moisture conditions.

[Archived PDF of article]

Research Letters

Combined Effect of Tides and Varying Inland Groundwater Input on Flow and Salinity Distribution in Unconfined Coastal Aquifers

by Woei Keong Kuan, Pei Xin, Guangqiu Jin, Clare E. Robinson, Badin Gibbes & Ling Li

Abstract: Tides and seasonally varying inland freshwater input, with different fluctuation periods, are important factors affecting flow and salt transport in coastal unconfined aquifers. These processes affect submarine groundwater discharge (SGD) and associated chemical transport to the sea. While the individual effects of these forcings have previously been studied, here we conducted physical experiments and numerical simulations to evaluate the interactions between varying inland freshwater input and tidal oscillations. Varying inland freshwater input was shown to induce significant water exchange across the aquifer-sea interface as the saltwater wedge shifted landward and seaward over the fluctuation cycle. Tidal oscillations led to seawater circulations through the intertidal zone that also enhanced the density-driven circulation, resulting in a significant increase in the total SGD. The combination of the tide and varying inland freshwater input, however, decreased the SGD components driven by the separate forcings (e.g., tides and density). Tides restricted the landward and seaward movement of the saltwater wedge in response to the varying inland freshwater input in addition to reducing the time delay between the varying freshwater input signal and landward-seaward movement in the saltwater wedge interface. This study revealed the nonlinear interaction between tidal fluctuations and varying inland freshwater input will help to improve our understanding of SGD, seawater intrusion, and chemical transport in coastal unconfined aquifers.

[Archived PDF of article]

Essay 86: World-Watching: India

(from ICRIER Newsletter | November 2019 | Vol. III, Issue 11)

The November 2019 issue of the Newsletter provides a quick recap of ICRIER’s research and policy engagements during the month of October 2019.

Three research reports were released by ICRIER last month in the areas of competition, trade and investment and climate change (See below).

ICRIER also organized consultation workshops, dissemination and outreach events during the month. ICRIER researchers published several articles in leading newspapers and other media platforms on a variety of current issues such as growth, agriculture, trade, FTAs, RCEP, single use plastics and the Economics Nobel. We sincerely hope that you will take a few moments to glance through these updates and engage further with anything that interests you. We hope you enjoy the newsletter’s new format. As always, we welcome your valuable feedback.

Competition Issues in India’s Mobile Handset Industry

(Rajat Kathuria, Mansi Kedia and Kaushambi Bagchi)

Mobile phones have been the key to India’s technology revolution. India is the second largest mobile phone market globally, next only to China. At the end of 2018, the estimated number of smart phone users in India was 337 million, compared to 2.53 billion users worldwide. One would imagine that the exponential increase in cheaper smart phone models would displace the market for feature phones; to the contrary, feature phones continue to dominate the Indian market. While smart phone and feature phone shipments in 2018 Q3 were about the same, a comparison of growth rates shows that both phablets (large screen smartphones) and regular smartphones eclipse feature phones.

Read more (archived PDF).

Exploring Trade and Investment Opportunities between India and Select African and Asian Economies

(Anirudh Shingal, Neha Gupta, Minakshee Das, Akshaya Aggarwal and Varsha Jain)

Using descriptive statistical analysis, this study examines trade and investment opportunities between India and 41 African and Asian economies (mostly LDCs) by focusing on the latter’s export opportunities in the Indian market and on India’s investment opportunities in the selected countries. It also discusses barriers to realizing the identified trade and investment opportunities between India and the selected economies, based on a review of the existing literature.

Read more (archived PDF).

Financing Resilience against Natural Disasters

(Saon Ray, Samridhi Jain and Vasundhara Thakur)

Disaster Risk Resilience can be interpreted as global policies working for improving disaster risk reduction. The Sendai Framework for Disaster Risk Reduction is the guiding principle for efforts to improve resilience worldwide. This report links the global efforts for disaster risk reduction with resilient infrastructure. The report analyses the applicability of popular instruments for emerging economies, the role of the private sector, and challenges to implementation of resilience framework. It maps the evolution and status of disaster risk financing in India.

Read more (archived PDF).

ICANN 66 Pre-Meeting Briefing

ICRIER hosted the ICANN 66 Pre-Meeting Briefing on 18th October 2019 for its Indian stakeholders. This edition of the Pre-Meeting Briefing looked closely at the developments between ICANN 65 and ICANN 66 and highlighted some of the key policy discussions currently underway at ICANN. The event witnessed participation from various stakeholders from India, including representatives from the Ministry of Electronics & Information Technology (MeitY), National Internet Exchange of India (‘.in’ registry) along with Indian representatives active in various policy development processes at ICANN. ICANN 65 was held in Montreal, Canada, between 2-7 November 2019. ICRIER will also be hosting the ICANN 66 Readout during the first week of December 2019 to highlight some of the key takeaways from ICANN 66.

Read more [archived PDF].

Dissemination of the India-LDCs Trade and Investment Study

ICRIER organised Dissemination of the Report Exploring Trade and Investment Opportunities between India and Select African and Asian Economies on October 14, 2019 at Magnolia Hall, India Habitat Centre, Lodhi Road, New Delhi.

Welcome remarks were delivered by Dr. Rajat Kathuria, Director & CE, ICRIER and the Introductory Session was Chaired by Dr. Jayant Dasgupta, IAS (Retd.) Former Ambassador of India to the WTO. Dr. Anirudh Shingal, Sr. Fellow, ICRIER presented the key findings of the report, which was followed by a Panel discussion Chaired by Dr. Arpita Mukherjee, Professor, ICRIER.

Read more [archived PDF] [Presentation PDF] [Report PDF]

Market Incentives, Direct Income Support for Farmers are far more Effective in Increasing Agricultural Productivity

(Ashok Gulati, Sakshi Gupta)

Read article [archived PDF]

Cities at Crossroads: Single-use Plastic only Part of the Challenge

(Isher Judge Ahluwalia, Almitra Patel)

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From Plate to Plough: Agri-Policy Lessons from China

(Ashok Gulati & Sakshi Gupta)

Read article [archived PDF]

Growth, Income, Poverty and the Nobel

(Alok Sheel)

Read article [archived PDF]

Understanding the RCEP with Rajat Kathuria

(Rajat Kathuria)

Listen to podcast [archived MP3 audio] [PDF transcript]

The Five-trillion Math

(Alok Sheel)

Read article [archived PDF]

Has PM-Kisan Belied Expectations?

(Siraj Hussain)

Read article [archived PDF]

How Government Can Control Sudden Spike in Prices of Onion and Tomato

(Ashok Gulati & Harsh Wardhan)

Read article [archived PDF]

Best of Business Standard Opinion: Corporate Tax Cuts, Pollution Challenge…

(Durgesh K. Rai)

Read article [archived PDF]

India’s Trade with its FTA Partners: Experiences, Challenges…

(Durgesh K. Rai)

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India’s Trade Policy Should Lend an Ear to a Wider Range of Voices

(Ujjwal Krishna & Amrita Saha)

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Monsoon’s Late Surge Helps, But Floods Hurt Crop Prospects

(Siraj Hussain)

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