Mayors Stay the Course on Climate Action; Pruitt Questions EPA’s GHG Regulation Toolbox

The Nicholas Institute for Environmental Policy Solutions at Duke University

Democrats and Republicans are sharply divided on climate change in Congress but perhaps not so much at the municipal level. In a show of bipartisan support for the Paris Agreement and the Clean Power Plan at the conclusion of the U.S. Conference of Mayors in Miami Beach on Monday, leaders from more than 250 cities voted on symbolic resolutions calling for the Trump Administration to rejoin the global climate accord and embracing the goal of running their jurisdictions entirely on renewable energy by 2035. Another resolution called for President Trump and Congress to “develop a comprehensive risk management program to address future flood risks from sea level rise.”

“I think most mayors in America don’t think we have to wait for a president” whose beliefs on climate change are not supported by science, said New Orleans Mayor Mitch Landrieu. “There’s near unanimity in this conference that climate change is real and that humans contribute to it,” he said, adding “If the federal government refuses to act or is just paralyzed, the cities themselves, through their mayors, are going to create a new national policy by the accumulation of our individual efforts.”

The mayors showcased climate change with panels on climate resiliency and a neighborhood tour by Miami Mayor Philip Levine highlighting municipal efforts to cope with sea-level rise. Miami Beach is one of the U.S. cities most vulnerable to climate change.

Preliminary results of a survey jointly conducted by the U.S. Conference of Mayors (USCM) and the Center for Climate and Energy Solutions were released at the conference on Saturday. According to USCM, the survey of 66 municipalities, ranging from 21,000 to 8.5 million residents across 30 states, found “overwhelming interest by cities in collaborating with the private sector to accelerate climate efforts.”

On Tuesday at a Senate appropriations subcommittee hearing, U.S. Environmental Protection Agency (EPA) head Scott Pruitt suggested that the Clean Air Act may not have given his agency the tools for those efforts, telling committee members that the EPA’s endangerment finding, which established that greenhouse gas emissions were harmful to human health, did not settle the question of how the agency should regulate those emissions.

Massachusetts v. EPA simply said to the EPA that it had to make a decision on whether it had to regulate, whether it posed a risk to health, and there was an endangerment finding that followed that in 2009. It did not address whether the tools were in the toolbox,” Pruitt said. He added, “I think what’s important is that we are responding to the CO2 issue through the regulation of mobile sources, we’re also evaluating the steps or the tools we have in the toolbox with respect to stationary sources, and that’s our focus,” he said.

Challenging Pruitt’s assertion that the Clean Air Act gave the EPA no clear authority to regulate carbon emissions, John Walke, clean air director at the Natural Resources Defense Council, pointed to two Supreme Court cases—American Electric Power Co. v. Connecticut and Utility Air Regulatory Group v. EPA—affirming that authority, specifically with regard to emissions from stationary sources.

Global Sea-Level Rise Accelerates

A new study, published Monday in the journal Nature Climate Change, adds to recent literature confirming an acceleration in sea-level rise during the past few decades. That literature, which includes a study published in early June that found a tripling of the rate of sea-level increase between 1990 and 2012, is significant in part because of earlier uncertainty about whether global waters were indeed rising—uncertainty cited by climate change deniers. Specifically, the new study reveals the close match between what scientists know about contributors to sea-level rise and measured rates from satellites, and it nails down the sea-level rise acceleration.

The study led by Xianyao Chen of the Ocean University of China and Qingdao National Laboratory of Marine Science and Technology showed that the main contributor to recent sea-level rise is the thawing of Greenland’s ice sheet. The study found that the annual rate of sea-level rise had reached 0.13 inches in 2014. But ocean levels rose 50 percent faster in 2014 than in 1993, with meltwater from the Greenland ice sheet making up 25 percent of total sea level increase compared with 5 percent 20 years earlier. That finding suggests that the rate will continue to accelerate, and scientists say oceans are likely to rise about three feet by century’s end.

The study co-authors said the rate’s acceleration “highlights the importance and urgency of mitigating climate change and formulating coastal adaptation plans to mitigate the impacts of ongoing sea level rise.”

Climate Change-Related Fires Increase in the Arctic

Recent massive fire years in Alaska and Canada have been driven by extreme lightning storms that are likely to move north with climate warming, according to findings in Nature Climate Change by researchers from Vrije Universiteit Amsterdam and the University of California, Irvine. The scientists found that as fires creep northward, near the transition from boreal forests to Arctic tundra, large amounts of carbon currently locked in permafrost could be released. In addition, trees could begin growing in the tundra, darkening surfaces previously covered with snow, which prevents the reflection of sunlight away from Earth and contributes to global warming.

Using satellite and ground-based data, the researchers discovered that lightning-caused fires have risen 2 to 5 percent a year for the last four decades. The reason? Warmer temperatures increase thunderstorms, which in turn increase lightning and fire risk. These changes are part of a complex climate feedback loop, said Sander Veraverbeke of Vrije Universiteit Amsterdam, the study’s lead author.

“You have more fires; they creep farther north; they burn in these soils which have a lot of C02 and methane that can be exposed directly at the moment of the fire and then decades after,” Veraverbeke said. “That contributes again to global warming; you have again more fire.”

The study was prompted by immense fires in Alaska and Canada’s Northwest Territories in two of the last three years. Lightening was the cause of some 82 percent of the burned areas in the Northwest Territories in 2014 and 95 percent of the burned areas in Alaska in 2015—areas that don’t usually experience fires, according to Veraverbeke.

“These fires are claiming an area that they haven’t burned historically, which also means they can change the carbon balance and shift an ecosystem into a different state,” Veraverbeke said.

Renewables and Grid Reliability Focus of Court Ruling, Report

The Nicholas Institute for Environmental Policy Solutions at Duke University

This week the U.S. Court of Appeals for the District of Columbia Circuit unanimously upheld the Federal Energy Regulatory Commission’s (FERC) approval of new performance rules for power plants, rejecting environmentalists’ arguments that the rules discriminate against intermittent energy sources such as wind and solar (subscription). The court said FERC acted in a reasonable way when it allowed the PJM, the independent transmission operator in 13 Mid-Atlantic and Midwestern states and Washington, D.C., to charge penalties to power plants that clear its capacity market but fail to provide continuous capacity. The rule change was prompted by the PJM’s grid reliability concerns in the wake of the East’s unusually cold winter in 2014, when a significant amount of natural gas generation became unavailable.

Concerns about grid reliability were also the subject of a new report, published in anticipation of a forthcoming study ordered by U.S. Department of Energy (DOE) Secretary Rick Perry on the electricity grid. The DOE study is planned to be released next month and is feared by environmentalists to undercut support for renewables (subscription).

The report released this week by consulting firm Analysis Group concluded that the addition of new natural gas-fired units and renewable energy capacity are increasing the nation’s electric reliability, not undermining it. According to the report, commissioned by the Advanced Energy Economy Institute and the American Wind Energy Association, efficient natural gas-fired generation and renewables increase reliability by increasing electric system diversity.

In calling for the grid study, Perry had suggested that renewable energy subsidies and related policies were jeopardizing reliability by decreasing the financial viability of baseload resources such as coal plants. The Analysis Group study said such policies were “a distant second to market fundamentals in causing financial pressure” on coal plants without long-term contracts. The biggest contributors to coal plants’ inability to compete, the report found, are new and efficient natural gas plants, low natural gas prices and flat electricity demand.

Moreover, the analysis challenged Perry’s statement, in the April 14 memo ordering the grid study, that “Baseload power is necessary to a well-functioning electric grid.” The report authors found that fears about the risks renewables pose to “baseload generation” don’t reflect understanding of a properly functioning electricity grid. They said “‘baseload resources’ is an outdated term in today’s electric system,” which seeks a combination of generation assets and grid-service technologies to allow for continuous power delivery.

Or as report co-author Susan Tierney, an Analysis Group senior advisor (and Nicholas Institute for Environmental Policy Solutions Advisory Board member), summed it up, “The transformation now under way in the electric power system is driven primarily by market forces. . . The result is a more diverse set of energy resources on the grid that is being capably managed in a way that provides reliable electric power.”

At a DOE budget hearing on Tuesday, Perry skirted details on his forthcoming policy declaration on baseload power and grid security.

Asked about his grid report, Perry said electric power security “requires a baseload capability that can run 24/7,” adding that the administration supports an “all of the above” approach to energy and that it is “[n]ot trying to pick winners and losers, but let the facts fall where they may” (subscription).

DOE Secretary Disputes Core Climate Science Finding

Department of Energy (DOE) head Rick Perry denied on Monday that carbon dioxide emissions from human activities are the main driver of the earth’s record-setting warming. Instead, Perry said, the driver is most likely “the ocean waters and this environment that we live in.”

“The idea the science is somehow settled, and if you don’t believe it’s settled you’re somehow or another a Neanderthal, that is so inappropriate from my perspective,” he said. “If you’re going to be a wise intellectual person, being a skeptic about some of these issues is quite all right.”

Those comments came a week after the DOE confirmed it was shuttering its international climate office and just days before Perry began defending to Congress the agency’s $28 billion budget request, which would slash many clean-energy programs, make a 17 percent cut in DOE’s Office of Science, and reduce by more than half research and development funding at the Office of Fossil Energy, which supports carbon capture and sequestration technology.

Oil Majors Sign on to Carbon Tax Proposal

Nearly a dozen multinational corporations, including oil giants Exxon and Shell, on Tuesday backed a plan from senior Republican statesmen to replace the Obama administration’s greenhouse gas regulations with a revenue-neutral carbon tax—that is, one that gives revenue directly back to citizens—a concept popular with economists. In a newspaper ad, the companies called for a “consensus climate solution that bridges partisan divides, strengthens our economy and protects our shared environment.” Exxon and the others were listed as founding members of the plan, along with the green groups Conservation International and the Nature Conservancy.

The proposal calls for a rising tax, starting at $40 for every ton of carbon dioxide pollution from fossil fuels, and a charge on imports in exchange for the Environmental Protection Agency being stripped of most powers to issue new emissions control regulations and repeal of the Clean Power Plan. Its proponents say this approach would create deeper emissions cuts than regulations—more than enough to meet the U.S. pledge under the Paris Agreement on global warming—and that in the first year the average family of four would receive approximately $2,000 as a carbon dividend.

The proposal was put forward by the Climate Leadership Council in February as part of a “free-market, limited government” response to climate change. It would require action from Congress, but the GOP, which controls both chambers, has shown no indication it would take it up. In fact, the House last year passed a nonbinding resolution—supported by every Republican member—to denounce a potential carbon tax.

United States Refuses to Endorse G7 Statement on Climate Change

The Nicholas Institute for Environmental Policy Solutions at Duke University

At a meeting of Group of Seven (G7) environment ministers, the first since President Donald Trump announced the U.S. exit from the Paris Agreement, the United States refused to sign a pledge that calls the global climate accord the “irreversible” global tool to address climate change. In a communique issued Monday, the U.S. position was distinguished in a footnote: “The United States will continue to engage with key international partners in a manner that is consistent with our domestic priorities, preserving both a strong economy and a healthy environment.”

In the communique, ministers representing Canada, France, Germany, Italy, Japan and the European Union reaffirmed their “strong commitment to the swift and effective implementation of the Paris Agreement,” but U.S. Environmental Protection Agency (EPA) head Scott Pruitt, who departed the two-day meeting in Bologna, Italy, meeting early, refused to sign sections related to climate change, multilateral development banks and support for implementation of climate finance pledges. He did join the other ministers in committing to a 2030 agenda for sustainable development, sustainable finance and resource efficiency.

In a statement on the G7 meeting, the EPA announced that the United States “stands firm” on its decision to withdraw from the Paris Agreement and that it has “reset the conversation about climate change” to reflect new priorities and the “expectations of the American people.” It included this quote from Pruitt: “We are resetting the dialogue to say Paris is not the only way forward to making progress. Today’s action of reaching consensus makes clear that the Paris Agreement is not the only mechanism by which environmental stewardship can be demonstrated.”

At the meeting’s opening session, Pruitt told delegates that the United States wanted to continue making efforts to combat climate change and that he wished to engage with the United Nations Climate Change secretariat.

Italian Environment Minister Gian Luca Galletti said a dialogue had been kept open to determine whether there were conditions for Washington to reenter the Paris accord. “But one thing is clear,” he said, “the accord is irreversible, non-negotiable and the only instrument for fighting climate change.”

McClatchy reported that the G7 country pushing hardest to maintain international momentum to address global warming is Germany, which hosts this year’s annual climate summit in November. Environment Minister Barbara Hendricks met last week with California Governor Jerry Brown to demonstrate that Germany is ready to work with individual U.S. states on the issue.

Hendricks and Brown—who last week signed green energy agreements with two Chinese cities—issued a joint statement on climate change in which they said “the withdrawal of the U.S. from the Paris Agreement underscores the important role that non-state actors, and particularly subnational actors, play in achieving the overall objective and goals of that agreement.”

The divide between the United States and its G7 partners on climate action was highlighted last week by Hendricks’s fact checks of Trump’s recent statements about the Paris deal and by President Emmanuel Macron’s invitation to U.S. climate researchers to move to France.

Clean Power Plan Goes to OMB for Review; Methane Emissions Standards on Hold

Last week the U.S. Environmental Protection Agency (EPA) advanced President Donald Trump’s efforts to rescind or revise the Clean Power Plan—which seeks a 32 percent cut in the power sector’s carbon dioxide emissions by 2030—by sending a review of the rule to the Office of Management and Budget (OMB) for analysis (subscription).

The OMB review is the final step before the EPA can release its proposal for public comments. Although the nature of the proposal remains unclear, a full repeal is expected to be the Trump administration’s goal.

Underlying the Clean Power Plan is a 2009 EPA determination that greenhouse gas emissions from vehicles should be regulated. The Obama administration argued that the determination, known as the endangerment finding, applied to stationary sources such as power plants as well to mobile sources. EPA head Scott Pruitt could reverse that interpretation to pull the plug on power plant regulation.

But a more likely strategy, ClimateWire reported, is that Pruitt will contend that the agency went beyond its purview in setting carbon reduction goals by looking at what the power system as a whole could achieve instead of focusing solely on improvements at coal plants (subscription). That is, the agency could be focusing on a legal argument rather than attempting to fight the science behind the rule.

A D.C. Circuit temporarily froze a case brought against the rule by some states and industry groups (subscription). It is now considering whether to keep proceedings on hold or to close the case.

Also on hold: the Obama administration’s oil and gas industry methane emissions standards (subscription). The U.S. Environmental Protection Agency said Tuesday it would propose a two-year stay of those standards while it reconsiders them. Pruitt signed the notice submitting the two-year stay to the Federal Register on Monday.

The move would extend the 90-day administrative stay, announced May 31, of the 2016 New Source Performance Standards for the oil and gas industry, which require companies to install leak detection devices and capture leaking emissions (subscription). The EPA also proposed a separate three-month stay to cover any time gap between the end of the 90-day stay and the beginning of the 2-year stay. Both new stays are subject to a 30-day comment period.

Study on Climate Change Put on Ice by Climate Change

Warming temperatures have resulted in dangerous maritime conditions off north Newfoundland, preventing climate scientists from traveling to their study area and forcing their transport vessel, the Canadian Coast Guard icebreaker Amundsen, to help free fishing boats and other ships hemmed in by ice traveling unusually far south from the high Arctic. David Barber, the expedition’s chief scientist, noted the irony of the conditions that caused cancellation of part of his team’s climate change study.

“I have been in the Arctic for 35 years and this is one of the most incredible experiences I have ever had,” he said Monday. “Normally these conditions aren’t so bad. This is climate change fully in action—affecting our ability to make use of marine resources and transport things.”

Barber pointed out that warming loosens ice, which can travel long distances on ocean currents.

“It’s very much a climate-change driven phenomenon,” said Barber. “When you reduce the extent of the ice and reduce the thickness of it, it becomes more mobile.” And he suggested that phenomenon offered a valuable lesson about climate change to the Canadian government.

“What happens in the Arctic doesn’t stay there. It comes south,” he said. “We’re simply ill-prepared.”

Canadian researchers and their international colleagues have been monitoring the impacts of climate change and resource development on Arctic marine and coastal ecosystems and northern communities since 2003.

Nonfederal Entities Declare Commitment to Paris Agreement

The Nicholas Institute for Environmental Policy Solutions at Duke University

Despite President Donald Trump’s decision to withdraw from the Paris Agreement, nonfederal entities are saying they will continue to fight climate change. Twelve states and Puerto Rico have formed the U.S. Climate Alliance, committing to uphold the global climate accord, and leaders of 211 cities have declared themselves “Climate Mayors,” promising to work toward the accord’s goals. Many of those same governors and mayors are among some 1,200 signatories, including more than a dozen Fortune 500 companies and 170-plus universities, vowing to cut emissions (subscription) in an open letter released Monday to the international community.

“The Trump administration’s announcement undermines a key pillar in the fight against climate change and damages the world’s ability to avoid the most dangerous and costly effects of climate change,” said the letter. “Importantly, it is also out of step with what is happening in the United States.”

Going by the name “We Are Still In,” the coalition called itself “the broadest cross section of the American economy yet assembled in pursuit of climate action.”

On Tuesday, Bloomberg Philanthropies said it would work with the coalition’s governors, mayors and business leaders to quantify greenhouse gas reductions. Although the organization does not expect to send a formal submission to the United Nations, it will develop a “societal nationally determined contribution” (subscription).

Some legal scholars have warned that, depending on their nature, actions taken by states in the U.S. Climate Alliance and “We Are Still In” coalition could raise constitutional questions under the foreign affairs pre-emption doctrine or Compacts Clause (subscription).

The first test case may be Hawaii, which on Tuesday became the first state to pass state-specific legislation that claims to legally implement portions of the Paris Agreement.

“Climate change is real, regardless of what others may say,” said Hawaii Governor David Ige. “Hawaii is seeing the impacts first hand. Tides are getting higher, biodiversity is shrinking, coral is bleaching, coastlines are eroding, weather is becoming more extreme. We must acknowledge these realities at home.”

Ige signed Senate Bill 559, which “expands strategies and mechanisms to reduce greenhouse gas emissions statewide,” and House Bill 1578, which aims to “identify agricultural and aquacultural practices to improve soil health and promote carbon sequestration—the capture and long-term storage of atmospheric carbon dioxide to mitigate climate change.”

Post­–Paris U.S. Climate Change Efforts: What Happens Now?

In his Paris Agreement exit speech, Trump promised to “begin negotiations to reenter either the Paris accord or really an entirely new transaction on terms that are fair to the United States.” But what concessions the United States could gain from a renegotiation are unclear, and attempts to forge a new deal may not have willing participants. In a joint statement issued an hour after Trump’s speech, Italy, Germany and France said “we firmly believe that the Paris Agreement cannot be renegotiated since it is a vital instrument for our planet, societies and economies.”

Greenwire reported that legal experts say a future president could get the United States back into the Paris Agreement, from which the earliest official exit date would be November 4, 2020, in just 30 days under a process by accession (subscription).

In the meantime, at least one former Environmental Protection Agency head, William Reilly (who serves as chair of the Nicholas Institute for Environmental Policy Solutions Advisory Board), suggested that the United States should make a “clean break” from international climate talks.

“I think that the worst possible outcome here is to announce an intended withdrawal from the agreement but to continue to participate in the deliberations of the parties,” said Reilly, adding that the United States might attempt to “reduce the commitments or aspirations that are agreed to in future conferences of the parties” (subscription).

Fact Checkers Question President Trump’s Paris Agreement Exit Speech

President Donald Trump never mentioned science in his speech announcing America’s withdrawal from the Paris Agreement (subscription). In an interview on MSNBC on Tuesday, U.S. Environmental Protection head Scott Pruitt, a vocal critic of the pact, appeared to suggest that science played no role in the exit decision, insisting that the focus of discussions about a withdrawal was “on the merits and demerits of the Paris accord.”

Multiple media have highlighted inaccuracies in Trump’s presentation of the accord. The Washington Post noted that Trump’s case against the agreement—that it would hurt the U.S. economy and that it treated the United States unfairly—ignored the benefits that could come from tackling climate change, including potential green jobs, and misrepresented the nature of the agreement. Specifically, emissions reduction pledges reflect non-legally binding nationally determined plans and the reality that developed countries, on a per capita basis, often produce more greenhouse gases than developing countries.

A video posted by The New York Times on its website questioned many of Trump’s claims, one of which was that the agreement would in effect transfer coal jobs to China and India. In fact, the voluntary Paris agreement doesn’t stop Trump’s loosening of restrictions on coal, a U.S. industry in decline in large part because of domestic access to cheap and abundant natural gas—a just released U.S. Energy Information Administration report says coal consumption for electricity sank last year to its lowest level (subscription) since 1984. Although China is building relatively less-polluting coal plants because it lacks such access, it has canceled more than 100 coal plants and expects to peak its coal use before the 2030 date set forth in a pre-Paris climate agreement with the United States. In its Paris pledge, India committed to obtain 40 percent of its energy from renewable sources by 2030.

Researchers at Massachusetts Institute of Technology (MIT) took issue with the president’s statement that even if the Paris agreement were implemented in full, it would produce only a two-tenths of 1-degree Celsius (0.4 degrees Fahrenheit) reduction in global temperature by the year 2100. Although Trump did not name his source, Reuters reported that he was referring to a MIT study finding that if countries honored their Paris pledges, global warming would slow by between 0.6 degree and 1.1 degrees Celsius by 2100—not two-tenths of 1-degree Celsius. The point of the article, according to one of the author’s co-authors, was not to diminish the contribution of the agreement but to illustrate that further actions would be needed to avert catastrophic warming.

EU and China Forge Climate Accord as Trump Pulls Plug on Paris Agreement

The Nicholas Institute for Environmental Policy Solutions at Duke University

President Donald Trump has decided to exit the Paris Agreement, the set of voluntary emissions reductions to which all but two countries are signatories—a win for 22 Republican Senators and a small group of advisers and a disappointment to those who lobbied for remaining in the agreement, including executives of the biggest global corporations and energy majors, national security officials, many top White House officials, and many heads of state. The United States now joins Syria and Nicaragua as the only holdouts to the accord.

“To fulfill my solemn duty to protect America,” said Trump, “the United States will withdraw from the Paris climate accord.” He added, “But begin negotiations to reenter either the Paris accord or an entirely new transaction on terms that are fair to the United States . . . So we’re getting out but we’ll start to negotiate and we’ll see if we can make a deal that’s fair.”

Trump said he is keeping his campaign promise to “put American workers first” and claimed that the accord was poorly negotiated by the Obama administration. He offered no details about how he plans to disentangle the United States from the Paris Agreement (subscription).

The nonbinding Paris Agreement was designed to allow countries to tailor their climate plans to their domestic circumstances and to alter them as circumstances changed. But the hope was that peer pressure and diplomacy would lead to increased ambition and action to curb global-warming emissions. Nonetheless, Trump advisers like the chief strategist Stephen K. Bannon made the argument that staying in the Paris accord could entail a series of legal obligations—an argument rejected by some legal scholars.

Reaction to a likely withdrawal prompted world leaders to reiterate their commitment to the global pact and drew the ire of some.

European Commission President Jean Claude-Juncker said Trump doesn’t “comprehensively understand” the terms of the accord, though European leaders tried to explain the process for withdrawing to him “in clear, simple sentences” during summit meetings last week. “It looks like that attempt failed,” Juncker said. “This notion, ‘I am Trump, I am American, America first and I am getting out,’ that is not going to happen.” Juncker also warned that it would take years to extricate the United States from the Paris Agreement.

This week, an administration official laid out three ways the United States could leave the accord. First, Trump could announce he is pulling the United States from the deal, which would trigger a three-year withdrawal process that wouldn’t conclude until November 2020 under the deal’s terms—actual withdrawal would take perhaps another year. Second, Trump could declare that the Paris Agreement is actually a legal treaty that requires Senate approval, which it is unlikely to get. Third, Trump could withdraw the United States from the United Nations Framework Convention on Climate Change—the treaty that underpins the Paris Agreement. Although this process would take just one year, it would remove the United States from all global climate diplomacy.

Yesterday, as media outlets reported the likely decision by Trump on the Paris Agreement, came word of the first-ever bilateral agreement on climate change (subscription) between the European Union (EU) and China. According to a statement being prepared before an EU-China summit in Brussels starting today, members of the new alliance will say they are determined to “lead the energy transition” toward a low-carbon economy. The new pact calls for the EU to support the rollout of China’s national emissions trading system, likely hastening linkage of that system with the EU carbon market, the world’s largest. It also calls for the two partners to help poor countries develop green economies. A draft called the Paris Agreement an “historic achievement” and “proof that with shared political will and mutual trust, multilateralism can succeed in building fair and effective solutions to the most critical global problems of our time.”

The new pact may help to fill the void left by China’s former partnership with the Obama administration, a partnership instrumental in persuading nearly 200 countries to support the Paris Agreement in 2015.

Economists Say Carbon Tax Is Needed to Avert Climate Catastrophe

On Monday, 13 leading economists, including Nobel laureate Joseph Stiglitz and former World Bank chief economist Nicholas Stern, said carbon dioxide should be taxed at $40 to $80 per metric ton by 2020 and at as much as $100 per metric ton by 2030 to stop catastrophic global warming. The idea is to give businesses and governments an incentive to lower emissions even when fossil fuels are cheap—an idea rejected by the Trump administration and embraced by the world’s largest emissions trading coalition, the European Union, albeit at a carbon price—$6.70 per ton—well below that recommended by the report released by the High-Level Commission on Carbon Prices.

The report, which is backed by the World Bank and the International Monetary Fund, concluded that a “well-designed” carbon price is an “indispensable” element of any strategy to reduce carbon emissions while maintaining economic growth.

“The world’s transition to a low-carbon and climate-resilient economy is the story of growth for this century,” Stiglitz and Stern said in a joint statement. “We’re already seeing the potential that this transformation represents in terms of more innovation, greater resilience, more livable cities, improved air quality and better health. Our report builds on the growing understanding of the opportunities for carbon pricing, together with other policies, to drive the sustainable growth and poverty reduction which can deliver on the Paris Agreement and the Sustainable Development Goals.”

Among the report’s findings: Meeting objectives set out in the Paris Agreement will require all countries to implement policies that complement carbon pricing and address market and government failures—policies promoting renewable-based power generation, high efficiency standards, relevant R&D investment, and financial devices that lower the risk-weighted capital costs of low-carbon technologies. Although carbon taxes can raise revenues that can be used to increase green growth, low-income countries might need to start pricing carbon at low and gradually increasing levels to protect people particularly vulnerable to initial price increases.

The report explicitly acknowledges that challenge, suggesting that “The revenue can be used to foster growth in an equitable way, by returning the revenue as household rebates, supporting poorer sections of the population, managing transitional changes, investing in low-carbon infrastructure, and fostering technological change.”

The report highlights the difference between a carbon tax and an emissions trading system (ETS), which in the European Union has resulted in few, if any, carbon emissions reductions due to a far-too-high emissions cap, resulting in an oversupply of emissions permits that have kept carbon prices low. A carbon tax is administratively far less complex than an ETS. Although any particular carbon tax level could result in a higher- or lower-than-desired emissions reductions, it can be adjusted to achieve desired reductions, especially if it levied in an administratively efficient way, which in the energy sector would involve an “upstream” levy on bulk coal, oil, or gas.

Study Refutes EPA Head’s Claim of a “Leveling Off” of Global Warming

A new study in the journal Nature Scientific Reports directly refutes the claim made by Environmental Protection Agency (EPA) Administrator Scott Pruitt during his Senate confirmation hearing that satellite data show a “leveling off” of global warming.

“Mr. Pruitt claimed that ‘over the past two decades satellite data indicates there has been a leveling off of warming.’ We test this claim here,” wrote Benjamin Santer and three of his Lawrence Livermore National Laboratory colleagues, along with scientists from the Massachusetts Institute of Technology, the University of Washington in Seattle, and science research company Remote Sensing Systems.

After comparing all possible 20-year periods of satellite records to larger trends in the climate system, the paper concludes Pruitt was wrong (subscription). It also points to multiple peer-reviewed studies that have undercut the theory of a “pause” in global warming between 1998 and 2012 and that have shown increased evidence of a “human fingerprint” on climate.

“In my opinion, when incorrect science is elevated to the level of formal congressional testimony and makes its way into the official congressional record, climate scientists have some responsibility to test specific claims that were made, determine whether those claims are correct or not, and publish their results,” Santer told the Washington Post.

He emphasized the importance of continuing scientific research into climate change, telling ThinkProgress that the budget that covers the Lawrence Livermore National Laboratory, where his work is housed, faces a proposed 70 percent cut in the budget released last week by the White House.