NASA chief largely backs mainstream science on human-caused warming

Jim Brandestine
Then-Rep. Jim Bridenstine, R-Okla., attends a news conference. Photo: Tom Williams/CQ Roll Call

NASA Administrator Jim Bridenstine moved closer Thursday to embracing the scientific consensus that human activities are the dominant cause of global warming.

Why it matters: His comments are the closest that any top Trump administration official has come to endorsing the mainstream scientific view on the effects of human-caused greenhouse gas emissions.