Alberta: Once pristine wilderness, Alberta is now a world of polluted air and water, and rare cancer. VBS travels to the oil sands to investigate the impact of digging for oil.
Discover 11,128,835 listings and 278,250 playable programmes from the BBC
Alberta: Once pristine wilderness, Alberta is now a world of polluted air and water, and rare cancer. VBS travels to the oil sands to investigate the impact of digging for oil.