David Attenborough: collapse of civilisation is on the horizon

Naturalist tells leaders at UN climate summit that fate of world is in their hands

The collapse of civilisation and the natural world is on the horizon, Sir David Attenborough has told the UN climate change summit in Poland.

The naturalist was chosen to represent the world's people in addressing delegates of almost 200 nations who are in Katowice to negotiate how to turn pledges made in the 2015 Paris climate deal into reality.