Humans may have conquered the world, but not without a big helping hand from climate change. A major study of the last 120,000 years of history reminds us that, while we are adaptable, our species is ultimately at the mercy of the climate. Homo sapiens evolved in Africa around 200,000 years ago, but only left the continent about 70,000 years ago. After that our species rapidly went global, colonising first Europe and Asia, and then Australasia and the Americas.

Via Dr. Stefan Gruenwald