Reuters: Canadian Natural Resources Ltd has been ordered to drain a lake on the site of its northern Alberta oil sands project so that contamination on the lake's bottom, from a leak that has been spilling tar-like bitumen for months, can be cleaned up.
The province of Alberta's environment department issued an environmental protection order on Tuesday that compels the company to drain a two-thirds of the 53-hectare (131-acre) lake on its Primrose East thermal oil sands site before the onset of winter...