Oil Sands Industry in Canada Tied to Higher Carcinogen Level
►http://www.nytimes.com/2013/01/13/world/americas/oil-sand-industry-in-canada-tied-to-higher-carcinogen-level.html
The development of Alberta’s oil sands has increased levels of cancer-causing compounds in surrounding lakes well beyond natural levels, Canadian researchers reported in a study released on Monday. And they said the contamination covered a wider area than had previously been believed.