Treehugger.com includes a short, but amazing, story on mining Canada's tar sands for their oil:
Most of you are already aware of the damage caused by the burning and the extraction of oil (like the apprehended damage caused by extraction in the Arctic Wildlife Refuge, for example). But what about the famous Canadian tar sands? After only two years of digging for bitumen near Fort McMurray in Alberta, Shell has already dug up a pit that is as much as three miles wide and 200 feet deep. 400-ton trucks, said to be the largest in the world, are used to move around all that dirt, and it takes a lot of it since on average 2 tons of tar sand are required to make 1 barrel of oil.
0 comments:
Post a Comment