Attenborough Warns of ‘Collapse of Civilizations’

“David Attenborough, the naturalist and broadcaster, sounded a dire warning in a speech Monday to the U.N. climate conference in Poland,” NPR reports.

Said Attennborough: “Right now we are facing a man-made disaster of global scale, our greatest threat in thousands of years: Climate change. If we don’t take action the collapse of our civilizations and the extinction of much of the natural world is on the horizon.”