Woolly mammoths roamed the Earth during the last glacial peak about 21,000 years ago. Image: Mauricio Anton
Woolly mammoths roamed the Earth during the last glacial peak about 21,000 years ago. Image: Mauricio Anton
What Ice Age weather tells us about climate change
Low CO2 levels weren't the only thing making it cold in the era of woolly mammoths 21,000 years ago
