Climate Change of Eras Past: Arctic Alligators and Shrinking Carnivores

When Congress convened its first meeting on the IPCC’s report on climate change in 2007, Dana Rohrabacher – the Republican representative of California’s 46th district – floated a rather unusual idea. Even though the report had concluded that greenhouse gases released into the atmosphere by human activity were among the chief drivers are modern-day climate change, Rohrabacher appealed to climate shifts of the ancient past to shift the blame away from Homo sapiens. There were obviously no humans around during the Paleocene-Eocene Thermal Maximum when the global temperature jumped 11°F in a period of 20,000 years starting 55.8 million years ago – an event Rohrbacher said might have been triggered by “dinosaur flatulence

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