Environment
America’s last mammoths died of thirst on an Alaskan island
Three kinds of data all agree that 5600 years ago, one of the last mammoth populations went extinct when climate change dried up their lakes
News
Advertisement
Three kinds of data all agree that 5600 years ago, one of the last mammoth populations went extinct when climate change dried up their lakes
We saved the ozone layer, but in doing so unleashed more global warming with the 1987 agreement to replace CFCs with HFCs. Now, we’re set to fix the problem