Ah yes, Canada's dirty big secret. With high oil prices there are huge profits being made, while the tar sands create a significant amount of Canada's greenhouse gas emissions. The worst part of this process, IMO, is that both natural gas and water are used to process the oil. That means using three natural resources to make refined oil. The only end to this, I fear, is when the water runs out and people won't be able to live and work in the area.

More here:
http://oilsandstruth.org/