Attenborough fears climate 'catastrophe'
Sir David Attenborough has issued his strongest statement yet on the threat posed to the world by climate change. In the BBC programme Climate Change - The Facts, the veteran broadcaster outlines the scale of the crisis facing the planet. Sir David says we face "irreversible damage to the natural world and the collapse of our societies". But there is still hope, he says, if dramatic action to limit the effects is taken over the next decade.