Tar Sands Crude Oil: Health Effects of a Dirty and Destructive Fuel
The boreal forest in Northern Canada lies atop massive tar sands deposits that are roughly the size of Florida. Crude oil produced from these tar sands is one of the world's dirtiest and most environmentally destructive sources of fuel. Today, energy companies in Canada are actively developing this dirty fuel and have plans to triple production in the coming years. As tar sands is strip-mined and drilled from beneath the boreal forest of Alberta, Canada, greater volumes of tar sands-derived crude oil will be transported through North America's communities.
http://www.nrdc.org/energy/tar-sands-health-effects.asp