Few journalists have studied the issue of global warming with the thoroughness of The New York Times’ Justin Gillis, who has raised hackles by comparing global warming skeptics to opponents of evolution.

Now, Time magazine editor-at-large David Von Drehle holds a public conversation with Gillis about Covering Climate Change.

Gillis, who reports and blogs on the environment for the Times, warns that “the hour is late … To head off the worst consequences of global warming, we needed to get started 20 years ago and we did not. If we started today it would be hard, and we’re not starting today.”

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