How Earth Once Cooled Off
A geological discovery shows how carbon was captured to chill the planet. The post How Earth Once Cooled Off appeared first on Nautilus.
Could understanding the forces that drove former ice ages on Earth help us figure out how to slow or even reverse global warming? It’s a question scientists have spent considerable time contemplating.
The geologic record shows that many dramatic historic fluctuations in Earth’s climate—including ice ages and periods of accelerated warming—were driven by imbalances in the carbon cycle. Humans are clearly responsible for the current imbalance—we emit 50 times more carbon dioxide annually than all the combined, far outstripping the from the atmosphere.
