Congress was wise to ban oil drilling in ANWR, one of the most pristine areas on Earth, and it would be equally wise to ban the import of oil from the tar sands of Alberta in Canada.

The tar sands hold an estimated 174 billion barrels of crude oil, making Canada's oil-sands deposits second only to Saudi Arabia in global reserves.

According to America's Environmental Protection Agency, producing Canadian tar-sands oil generates 82 percent more greenhouse-gas emissions than does the average barrel refined in the United States.

Tar sands oil is produced through a destructive process that has deplorable consequences. Extraction and processing of just one barrel of synthetic crude oil from bitumen requires up to five ...

Oil-spill Cleanup Safety Questionable — and Questions Unanswered An existing tar sands pipeline running through the United States from Alberta, called Keystone 1, was billed as the safest pipeline in ...

Opponents of the Keystone XL Project and the Gulf Coast Project, both proposed by Calgary-based TransCanada, argue that tar sands oil from Northern Alberta is dirtier and more corrosive than most ...

Recent spikes in gasoline prices have led once again to calls for more aggressive off-shore oil drilling and consideration of other sources of petroleum, particularly Canadian tar sands, to meet ...

The oil inside the Keystone Pipeline is transported from the tar sands of Alberta, Canada — the globe's third largest petroleum reserve — to refineries in the Midwest and the Gulf Coast.

U.S. green groups are highlighting objections to importing tar sands-based oil as the House Speaker prepares to meet Canadian officials.

The cause for the spill is still unclear. What's known is the type of oil that was piped: tar sands oil, also called diluted bitumen. It's a lot harder to clean up than conventional oil.

Canada will boost monitoring of pollution from its oil-rich tar sands and hopes this will speed up Washington's approval of a proposed $7 billion pipeline to transport heavy Canadian crude to the ...

The oil from the Bakken formation is clean, won't give us cancer and unlike that from Canada, is not foreign oil. Focusing on Bakken Formation oil, not tar-sands oil, is the most logical option.