As Election Nears, Trump Makes a Final Push Against Climate Science

WASHINGTON — The Trump administration has recently removed the chief scientist at the National Oceanic and Atmospheric Administration, the nation’s premier scientific agency, installed new political staff who have questioned accepted facts about climate change and imposed stricter controls on communications at the agency.

The moves threaten to stifle a major source of objective United States government information about climate change that underpins federal rules on greenhouse gas emissions and offer an indication of the direction the agency will take if President Trump wins re-election.

An early sign of the shift came last month, when Erik Noble, a former White House policy adviser who had just been appointed NOAA’s chief of staff, removed Craig McLean, the agency’s acting chief scientist.

Mr. McLean had sent some of the new political appointees a message that asked them to acknowledge the agency’s scientific integrity policy, which prohibits manipulating research or presenting ideologically driven findings.

The request prompted a sharp response from Dr. Noble. “Respectfully, by what authority are you sending this to me?” he wrote, according to a person who received a copy of the exchange after it was circulated within NOAA.

Mr. McLean answered that his role as acting chief scientist made him responsible for ensuring that the agency’s rules on scientific integrity were followed.

The following morning, Dr. Noble responded. “You no longer serve as the acting chief scientist for NOAA,” he informed Mr. McLean, adding that a new chief scientist had already been appointed. “Thank you for your service.” ...