Although most Americans don't know it, the U.S. gets more oil from Canada than it does from the entire Middle East.

Bill Gates is a relative newcomer to the fight against global warming, but he's already shifting the debate over climate change.

This Dewdrop World is a beautiful, courageous, intimate film about love and loss. It may also be the deepest meditation on climate change that I've ever seen.

Climate scientists have long pointed to the Southwest as one of the places in the U.S. that is most vulnerable to global warming impacts, especially drought. And if there's one thing that even climate denialists don't dispute, dry things burn.

Obama's record on climate issues is not all bad.

Geoengineering - the deliberate, large-scale manipulation of the earth's climate to offset global warming - is a nightmare fix for climate change.

Coal boosters like to tout coal as cheap and plentiful - well, not anymore. At least not in China.