Some guy on our board found these article .Have you heard about this ?
Comments please.
Science & Technology (alternative energy)

Edward Burtynsky
Environmental Defence just released a new report on the Alberta Oil Sands, calling it the most destructive project on Earth. DeSmogblog gleaned some facts from it:
-Oil sands mining is licensed to use twice the amount of fresh water that the entire city of Calgary uses in a year.
-At least 90% of the fresh water used in the oil sands ends up in ends up in tailing ponds so toxic that propane cannons are used to keep ducks from landing.
-Processing the oil sands uses enough natural gas in a day to heat 3 million homes.
-The toxic tailing ponds are considered one of the largest human-made structures in the world. -The ponds span 50 square kilometers and can be seen from space.
-Producing a barrel of oil from the oil sands produces three times more greenhouse gas emissions than a barrel of conventional oil.