Science @ Columbia


James Hansen, a Columbia University professor who is one of the world’s most respected experts on climate change, also issued a statement attacking the [State Department study into the proposed Keystone XL piepline’s]¬†findings. “To say that the tar sands have little climate impact is an absurdity,” he said.

#environmental policy   #LDEO   #Earth Institute   #oil   #tar sands   #climate policy  

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