Ancient Arctic Water Cycles Are Red Flags To Future Global Warming

Co author Matthew Huber, an assistant professor of earth and atmospheric sciences at Purdue University’s College of Science compared data from the research expedition with complex climate-model simulations to study and predict the effects of greenhouse gases. Their measurements confirm that the carbon dioxide level increase in the Palaeocene/Eocene thermal maximum (PETM) was at least twice as large as those previously proposed.

“We now have a pretty good correlation between records of past warmth and higher carbon dioxide concentrations,” Huber said. “What it tells you is that it’s not too difficult to push the climate system to a warm state. If you work out the numbers, it’s almost identical to what we are expected to do over the next few hundred years.”

sciencedaily