Keystone XL pipeline expansion driven by oil-rich tar sands in Alberta

Washington Post: Repairman Shawn Flett stood 30 feet above the ground on the deck of a truck the size of a house. He had just waved it gingerly into the repair shop as if guiding an airplane into a hangar. This is a beast of a machine, with 14-foot tires and weighing in at more than a million pounds. The truck burns 50 gallons of diesel an hour as it rumbles with 400-ton loads across the giant open-pit mines that have transformed a swath of Alberta's vast northern forest into unsightly but lucrative sources of oil....

URL: http://www.washingtonpost.com/business/economy/keystone-xl-pipeline-expansion-driven-by-oil-rich-tar-sands-in-alberta/2012/06/30/gJQAVe4ZEW_story.html