The History of Climate Cycles (and the Woolly Rhino)

The History of Climate Cycles (and the Woolly Rhino)

14:35 | Throughout the Pleistocene Epoch, the range of the woolly rhino grew and shrank in sync with global climate. So what caused the climate — and the range of the woolly rhino — to cycle back and forth between such extremes?

The Last Time the Globe Warmed

The Last Time the Globe Warmed

10:53 | Imagine an enormous, lush rainforest teeming with life…in the Arctic. Well there was a time — and not too long ago — when the world warmed more than any human has ever seen. (So far)