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.

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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.