Peter Gleick, a water expert and climate scientist, says he obtained documents that revealed the inner workings of the Heartland Institute by soliciting them from the group under someone else’s name.

A new study says that exploiting Canada’s tar sands might not exacerbate climate change as much as environmental groups fear.

Mexico and the U.S. are going to work together on offshore oil drilling.

Some species — killer whales, white-tailed deer, jellyfish, and mosquitoes — could thrive in a climate-changed world.

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There’s a better way to plant trees in cities.