As part of the War on Terra season, Marcel Theroux travels through the weird and scary world of climate change to talk to the experts — the environmentalists, scientists and economists — and meet people who have already had a taste of what global warming has in store for us all. Global warming is the biggest problem facing us this century … bigger even than the problems of global terrorism.' — Sir David King, Chief Scientific advisor to the British Government. The icecaps are thinning, the forests are dying, the sea levels are rising and the Gulf Stream is slowing. Theroux explores how the threats posed by climate change call for a radical re-thinking of our priorities. To save the planet, scientists say we need to slash carbon dioxide emissions by at least 60% which leads Theroux to the unthinkable conclusion: that nuclear power may be the way to avert catastrophe.