Editor’s note: The chat’s over now, but you can watch a replay of Revkin’s conversation with David Roberts.

Andrew Revkin has been on the front lines of environmental journalism for decades. He picked up the climate story before many of us had heard of it. He’s best known for his Dot Earth blog at the New York Times, where he covered environmental issues as a reporter from 1995 to 2009.

[youtube http://www.youtube.com/watch?v=FM7oxrdoaRM&feature=youtu.be%5D