WASHINGTON — The Environmental Protection Agency announced on Tuesday that Scott Pruitt, the chief of the agency, had signed a measure to repeal President Barack Obama’s signature policy to curb greenhouse gas emissions from power plants, setting up a bitter fight over the future of America’s efforts to tackle global warming.
Mr. Pruitt, who had signaled the move at an event with coal miners in eastern Kentucky on Monday, said in a news release that his predecessors had departed from regulatory norms in writing the Clean Power Plan, which was finalized in 2015 and would have pushed states to move away from coal in favor of sources of electricity that produce fewer carbon emissions.
Describing the Obama-era regulation as the “so-called Clean Power Plan,” the E.P.A. statement said that repealing the measure “will also facilitate the development of U.S. energy resources and reduce unnecessary regulatory burdens associated with the development of those resources.”
The repeal proposal, which will be filed in the Federal Register on Tuesday, fulfills a promise President Trump made to eradicate his predecessor’s environmental legacy. Eliminating the Clean Power Plan makes it less likely that the United States can fulfill its promise as part of