Keystone climate impacts could be 4 times higher than estimate, study says

[news]

http://i.cbc.ca/1.1555802.1379046922!/httpImage/image.jpg_gen/derivatives/16x9_460/hi-keystone-pipeline.jpg An economic analysis of the proposed Keystone XL pipeline's possible climate impacts has concluded they could be up to four times higher than previously estimated.


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