Lisa Friedman

Senior officials at the Environmental Protection Agency are expected to announce the move on Friday, according to people briefed on the matter.

The Environmental Protection Agency repealed the bedrock scientific finding that says greenhouse gases threaten human life and well being. It means the agency can no longer regulate them.

The Trump administration has repealed the scientific determination that underpins the government’s legal authority to combat climate change.

The agency is racing to repeal a scientific finding that requires it to fight global warming. Experts say the goal is to get the matter before the justices while President Trump is still in office.

A small group of conservative activists has worked for 16 years to stop all government efforts to fight climate change. Their efforts seem poised to pay off.

A new organization blessed by the president is raising money for events and projects that will put a Trumpian spin on the nation’s semiquincentennial.

Lee Zeldin, the E.P.A. administrator, revived a plan created during the first Trump administration to end the testing of chemicals on mammals.

The president’s embrace of fossil fuels and withdrawal from the global fight against climate change will make it hard to keep warming at safe levels, scientists said.

The president’s embrace of fossil fuels and withdrawal from the global fight against climate change will make it hard to keep warming at safe levels, scientists said.

Most of the reserves in the country are extra-heavy oil that’s tough to extract and generates more greenhouse gases.

Karen Budd-Falen, the No. 3 at the Interior Department, didn’t disclose a $3.5 million water-rights contract between her husband and the developers of a Nevada mine, records show.

The developers of Revolution Wind off Rhode Island and Empire Wind off New York are the latest to sue the Trump administration.

Diplomats told E.U. officials that the bloc’s law on methane, a potent greenhouse gas, would hurt American oil and gas companies.

The president’s energy strategy is projected to generate more pollution, but so far production has not risen significantly and price drops have been modest, analysts say.