There is stronger evidence than ever that greenhouse gases are bad for us, the nation’s leading scientific advisory body said yesterday. Yet President Trump has proposed to cancel the government’s 16-year-old finding that carbon dioxide emissions endanger public health. Doing so would mean the Environmental Protection Agency could no longer limit emissions from cars or power plants.

The Trump administration once merely downplayed the threat of global warming. Now it “flatly denies the overwhelming scientific evidence of climate change,” reports my colleague Lisa Friedman, who covers climate policy. For today’s newsletter, I spoke with Lisa about all the things that are shifting.

Can you list for us the most important climate decisions from Trump’s second term?

Ending climate protections. The most significant is the proposed repeal of the “endangerment finding,” which you mentioned above.

Dismantling climate science. The administration cut funding and took down the website of the U.S. Global Change Research Program, a 35-year effort to track climate change and its impacts. It fired hundreds of scientists at work on the next version of the National Climate Assessment, a congressionally mandated report used to prepare for extreme weather events. And it created a new official analysis written by climate skeptics.

War on wind and solar. Trump is stopping renewable energy projects, and his domestic policy law phases out tax credits for new wind and solar development.

I get that fossil fuel industries are part of the Republican coalition. But I don’t understand the opposition to solar and wind projects. Last month, Trump ordered construction to halt on a $6 billion wind farm that was almost completed. What is your best explanation for why Trump wants to block green technologies?