The Trump administration sought advice from a vocal climate-change denier to help shape its environmental message, according to the Associated Press, which saw emails acquired through the Freedom of Information Act. The emails, written in 2018 and 2019, included correspondence between William Happer, a member of the National Security Council, and officials from the Heartland Institute, one of America’s most vocal climate-change challengers. The AP quotes a March 3 email exchange between Happer and Heartland adviser Hal Doiron in which the Trump official was given arguments that would help counter environmentalists’ messaging. In those emails, Happer admitted he had also discussed the issue with another Heartland adviser. “It’s the equivalent to formulating anti-terrorism policy by consulting with groups that deny terrorism exists,” Matthew Nisbet, a professor of environmental communication and public policy with Northeastern University, told the AP.