The Keystone XL Pipeline and its politics, explained:
"Why is it so politically controversial?
There are two reasons Keystone has become a political lightning rod. The most important factor is what development of the oil sands—or tar sands—as they’re called by opponents—means for global warming. Extracting bitumen—a mix of oil, sand and clay — from the region is more akin to mining than conventional oil drilling, and the final product is 15 percent higher in greenhouse gas emissions than other forms of oil.
NASA climate scientist James E. Hansen, who just retired from his federal job so he could become a full-time climate activist, said if all the oil was extracted from the oil sands it would be “game over” when it came to the effort to stabilize the climate." (Juliet Eilperin on April 3, 2013. LINK) ... "
'via Blog this'