Tar sands "are sedimentary rocks containing bitumen, a heavy hydrocarbon complex," says the Bureau of Land Management. That definition is included in its final environmental impact statement for its ...

Canadian researchers have used the mud at the bottom of lakes like a time machine to show that tar sands oil production in Alberta, Canada, is polluting remote regional lakes as far as 50 miles from ...

The development of "oil shale" (not to be confused with "shale oil") and "tar sands" has been shown to be environmentally destructive, and water and energy intensive. Extracting oil from U.S. public ...

Discovered: Canadian tar sands impact regional water supplies; therapy doesn't necessarily stop teens from becoming suicidal; first images of the high-energy cosmos; city birds grow up fast. Tar-sand ...

OTTAWA (Reuters) - 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 ...

BOOK CLIFFS, Utah — On a remote Utah ridge covered in sagebrush, pines and wild grasses, a Canadian company is about to embark on something never before done commercially in the United States: digging ...

SALT LAKE CITY (Reuters) - Sheriff's deputies in Utah arrested nearly two dozen environmental protesters who chained themselves to fences and construction equipment on Monday at a tar sands mining ...