Climate

America may be coming to grips with the dark side of our cheapest, most abundant energy source, but a plan to unload it on Asia threatens to poison our planet.

Researchers zero in on a little-known landscape that offers some chilling lessons on the future of global warming.

To meet coming power demands we'll need to radically change our energy systems.

The Audubon network has achieved major accomplishments where climate and energy are concerned. It's prepared to take on more.

With rising gas prices and global temperatures, corn-based ethanol seemed to promise a bright energy future. Now, as corn's dark side becomes ever clearer, switchgrass offers a better alternative as well as a first step to restoring the prairie that once blanketed this country's heartland. 

An innovative collaboration between scientists is discovering how, 700 years ago, a mysterious, prehistoric culture overcame its landscape’s harsh constraints. The findings may tell a cautionary tale for today’s Southwest.

Peruvians living high up in the Andes may not know the phrase, "climate change," but they're worried about its effects.

There’s more carbon locked up in the high north’s permafrost than the combined total released into the atmosphere by humans. The big melt going on right now in the Arctic could trigger a train of catastrophic events across the world.

Skimming above a devastated Appalachian landscape, a photographer zooms in on landscape-leveling destruction.

Audubon and the Sierra Club celebrate a landmark settlement.