Global warming in the Paleocene era was similar to today

Paleocene and Eocene Epoch Mammals
The rate at which carbon emissions warmed Earth’s climate almost 56 million years ago resembles modern global warming much more than previously believed, according to a new study by University of Utah researchers published in the journal Nature Geoscience.
The findings mean the so-called Paleocene-Eocene thermal maximum, or PETM, can provide clues to the future of modern climate change.
“There is a positive note in that the world persisted, it did not go down in flames, it has a way of self-correcting and righting itself,” says the lead author of the study,  University of Utah geochemist Gabe Bowen.

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Past Global Warming Similar to Today’s | University of Utah News.