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March 14, 2012 — 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.

September 06, 2011 — Green energy isn’t necessarily harmless. But new efforts are under way to site renewable energy projects and transmission lines outside unspoiled landscapes and wildlife habitat.

September 01, 2011 — Not even a tragic accident could derail two young men’s inspiring project to study one of North America’s least-understood birds. Their groundbreaking research is helping ornithologists understand how to help these birds as a warming climate alters