Aerial shots of the enormous tailings ponds at the Suncor Steepbank/Millenium Mine in the Canadian tar sands.

Canada's tar sands are an oil reserve the size of England. Extracting the crude oil called bitumen from underneath unspoiled wilderness requires a massive industrialized effort with far-reaching impacts on the land, air, water and climate. Greenpeace is calling on oil companies and the government to stop the tar sands, for the sake of people and the planet.