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 ...

Canada’s tar sands are the fourth-largest oil deposit in the world, but separating the bitumen creates large volumes of toxic wastewater, which is stored in tailings ponds that now cover 270 km² (104 ...

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 ...

Jan 12 (Reuters) - Total SA launched a C$617 million ($510 million) unsolicited takeover bid late Tuesday for UTS Energy Corp , a Canadian oil sands firm whose major asset is a 20 percent stake in ...