Mr. Trump, the Climate Change Loner nytimes.com

President Emmanuel Macron of France tried this week during President Trump’s visit to Paris to get him to reverse his decision to take America out of the landmark global agreement on climate change, struck in December 2015 and since ratified by 153 nations. It was a futile exercise, as he must have known it would be.

At one point, Mr. Trump seemed to leave the door open for some unspecified compromise. But nobody knows what that would be. And in any case it is likely to be meaningless, because there is zero chance that he would reaffirm President Barack Obama’s commitment to make meaningful reductions in America’s greenhouse gas emissions, or seek to re-establish the leadership role that Mr. Obama occupied and that Mr. Trump has now abdicated.