![dirtyoil_title dirtyoil title Canadas Dirty Oil](http://www.planet-mag.com/blog/wp-content/uploads/dirtyoil_title.jpg)
While the world’s attention has been focused upon Canada for the Winter Olympics, another northerly site worth noting has continued to be widely ignored. Far from gold medal glory, the oil sands in northern Alberta continue to be dug up, mined, steamed, and refined in what many have claimed to be the most environmentally damaging process on earth.
The “tar sands”, as they’re most widely known, refer to bitumen (a dense, degraded form of oil) deposits that lie in the earth’s uppermost layers, heavily mixed together with sand. This form of petroleum is difficult to mine and even more difficult to refine into a usable form. The sands are such an expensive source of oil that it wasn’t until the 1990s that technology had advanced enough for the project to be economically viable. But with the reality of peak oil looming, the sands are now mined in earnest.
One million barrels are currently culled each day from the sands (of which 80 percent goes to the US) and each barrel requires cutting down forest, the removal of two tons of earth to reach the sands, and the removal of two tons of the sand itself. The whole process unleashes five times more greenhouse gases into the atmosphere than normal oil mining. Not only that, but barrels of water are used in the refining process to steam the bitumen from the sand, and the contaminated water left over is dumped into tailings ponds, which, as of a year ago, covered around 50 square miles.