Environmental Protection Agency Administrator Lee Zeldin has privately urged the White House to strike down a scientific finding underpinning much of the federal government’s push to combat climate change, according to three people briefed on the matter. The 2009 “endangerment finding” cleared the way for regulating greenhouse gases under the Clean Air Act by concluding that the planet-warming gases pose a threat to public health and welfare. Both the Obama and Biden administrations used that determination to set strict limits on emissions from cars and power plants. By repealing the endangerment finding, the Trump administration would be taking one of...