WASHINGTON — President Trump, flanked by company executives and miners, signed a long-promised executive order on Tuesday to nullify President Barack Obama’s climate change efforts and revive the coal industry, effectively ceding American leadership in the international campaign to curb the dangerous heating of the planet.
Mr. Trump made clear that the United States had no intention of meeting the commitments that his predecessor had made to curb planet-warming carbon dioxide pollution, turning denials of climate change into national policy.
Throughout the presidential campaign, Mr. Trump vowed to roll back Mr. Obama’s major climate change policies, a set of ambitious E.P.A. regulations to curb greenhouse pollution from coal-fired power plants. He made clear that American leadership in the global campaign against climate change would take a back seat to his commitment to energy industry jobs.
With his order to move forward with the rollback, climate diplomats around the world maneuvered to fill the vacuum left by the exit of the globe’s second-biggest climate polluter.
“There are countless countries ready to step up and deliver on their climate promises and take advantages of Mr. Trump’s short-termism to reap the benefits of the transition to the low-carbon economy,” said Laurence Tubiana, the chief French negotiator of the 2015 Paris agreement, the landmark accord that committed nearly every country to take action to reduce planet-warming emissions.
