EcoWatch: From the beginning, we`ve known that Keystone XL pipeline would be a climate disaster. We took James Hansen`s words seriously when he said that exploiting the tar sands would mean "essentially game over" for the climate.
Yesterday, a new report showed that it could be worse than we thought.
The report--the most comprehensive study of Keystone`s climate impacts yet--shows that the pipeline would carry 181 million metric tons of carbon dioxide equivalent, equal to 51 coal plants worth of carbon....