CO2 Increases Responsible for Only 40% of Ancient Warming – Could the World Get Even Hotter Than Models Predict?

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The article was orginally published at: CO2 Increases Responsible for Only 40% of Ancient Warming – Could the World Get Even Hotter Than Models Predict?

photo: Alejandro Cañizares via flickr

New research published in the journal Nature Geoscience shows that during Paleocene-Eocene Thermal Maximum, a period about 55 million years ago when the planet warmed rapidly, only about 40% of that warming can be attributed to rises in CO2 in the atmosphere. In short, “theoretical models cannot explain what we observe in the geological record,” report co-author G…

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