FORT MCMURRAY, Alberta -- Huge mines here turning tarry sand into cash for Canada and oil for the United States are taking an unexpectedly high environmental toll, sucking water from rivers and natural gas from wells and producing large amounts of gases linked to global warming. -
Canada Pays Environmentally for U.S. Oil Thirst
FORT MCMURRAY, Alberta -- Huge mines here turning tarry sand into cash for Canada and oil for the United States are taking an unexpectedly high environmental toll, sucking water from rivers and natural gas from wells and producing large amounts of gases linked to global warming.-
By Doug Struck