The Maldives, a nation of roughly 1200 low-lying islands in the Indian Ocean, could be underwater by the end of this century if climate change causes ocean levels to rise. On the eve of the big climate summit in Copenhagen, the country's president, Mohamed Nasheed, is warning of a massive exodus from the Maldives if drastic global action is not taken. NOW talks with President Nasheed about the climate crisis and why he compares it to genocide.