Editor’s note: The debate’s now over, but you can watch a replay of the discussion below.

Be here on Thursday, April 18, at 6:30 p.m. ET (3:30 PT), to watch a live debate and discussion:

Keystone XL: The science, stakes, and strategy behind the tar-sands pipeline fight

Hosted by Climate Desk
Moderated by Chris Mooney
Guests: David Roberts of Grist, May Boeve of 350.org, Michael Levi of the Council on Foreign Relations, and Michael Grunwald of Time