The administration is widely expected to discount or ignore detailed findings of the economic strain caused by climate change, even as it continues to cut environmental regulations, while opponents use it to mount legal attacks against the very administration that issued it.
WASHINGTON — The Trump White House, which has defined itself by a willingness to dismiss scientific findings and propose its own facts, on Friday issued a scientific report that directly contradicts its own climate-change policies.
That sets the stage for a remarkable split-screen political reality in coming years. The administration is widely expected to discount or ignore the report’s detailed findings of the economic strain caused by climate change, even as it continues to cut environmental regulations, while opponents use it to mount legal attacks against the very administration that issued the report.
“This report will be used in court in significant ways,” said Richard Revesz, an expert in environmental law at New York University. “I can imagine a lawyer for the Trump administration being asked by a federal judge, ‘How can the federal government acknowledge the seriousness of the problem, and then set aside the rules that protect the American people from the problem?’ And they might squirm around coming up with an answer.”
The 1,656-page National Climate Assessment, which is required by Congress, is the most comprehensive scientific study to date detailing the effects of global warming on the U.S. economy, public health, coastlines and infrastructure, and it describes in precise detail how the warming planet will wreak hundreds of billions of dollars of damage in coming decades. President Donald Trump has often questioned or mocked the basic science of human-caused climate change, and is now working aggressively to encourage the burning of coal and the increase of greenhouse-gas pollution.
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Historians and veterans of public service said that it is notable that policymakers didn’t try to soften the report’s conclusions, because it indicates the strength of the administration’s belief that it can ignore the findings in favor of policies driven by political ideology.
“This is a new frontier of disavowance of science, of disdain for facts,” said William Reilly, who headed the Environmental Protection Agency under President George H.W. Bush.
A White House statement said the report, started under the Obama administration, was “largely based on the most extreme scenario” of global warming and that the next assessment would provide an opportunity for greater balance.
The report, which, under a 1990 law, the federal government is required to issue every four years, introduces new complexity in the political fight over regulations designed to fight climate change. That’s because until the administration of President Barack Obama, no such regulations existed to be fought over.
Trump has made it a centerpiece of his administration’s policy to undo these rules. He has directed the Environmental Protection Agency (EPA) to sharply weaken the nation’s two major policies for curbing planet-warming pollution: One rule would limit greenhouse emissions from vehicle tailpipes, the other from power-plant smokestacks.
The rules are grounded in a 2009 legal finding, which has been upheld by federal courts, that planet-warming pollution harms human health and well-being, and thus necessitates government policies to reduce it.
The decision to issue the report, and not to alter or suppress its findings despite its scientific conclusions so much at odds with the president’s policies, reflected a clear political calculus, according to three people familiar with the White House’s thinking.
Since the report is mandated by Congress, not issuing it would have been a violation of the law. While some political appointees within one of the agencies that contributed scientific work to the report did suggest editing the summary of its conclusions to downplay the findings, that idea was also seen as too risky politically and legally, these people said.
Instead, these people said, administration officials hoped to minimize the impact of the report by making it public on the afternoon of Black Friday, the big shopping day after the Thanksgiving holiday, thinking that Americans might be unlikely to be paying attention.
More significantly, however, White House officials made the calculation that Trump’s core base of supporters most likely would not care that the report’s findings are so at odds with the president’s statements and policies.
That view is supported by Steven J. Milloy, a member of Trump’s EPA transition team who runs the website junkscience.com, which is aimed at casting doubt on the established science of human-caused climate change. “We don’t care,” he said. “In our view, this is made-up hysteria anyway.”
Work on the current report, which was done by about 300 scientists, including career government scientists at 13 federal agencies, commenced shortly after the publication of the previous report, in 2014, and was already well underway by the time Trump took office in 2017.
In interviews with about a dozen authors of the report, all said that White House officials had not sought to soften or weaken its language.
“I will give credit where it’s due: No one at the political level did any monkeying around with this,” said Andrew Light, a co-author of the report and a senior fellow at the World Resources Institute, a Washington research organization. “For all the criticism of the Trump administration quashing climate science, this is one case where they did not do that.”
People familiar with the decision to publish the report said that White House officials sought to avoid the political blowback that hit the George W. Bush administration when it was revealed in 2005 that a White House official and former oil lobbyist, Philip Cooney, altered the language of government climate science reports to weaken the link between fossil fuel pollution and the warming of the planet.
“This moment tells you that there is a difference between the White House, and the president,” said Douglas Brinkley, a presidential historian at Rice University. The White House has “lawyers and policy experts that don’t want to go down in history as falsifying data.”