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What Earth was like last time CO2 levels were as high as today


ambitiously slash carbon emissions in the coming decades. Sea levels, of course, won’t instantly rise by tens of feet: Miles-thick ice sheets take many centuries to thousands of years to melt. But, critically, humanity is already setting the stage for a relatively quick return to Pliocene climes, or climes at least significantly warmer than now. It’s happening fast. When CO2
naturally increases in the atmosphere, pockets of ancient air
preserved in ice show this CO2 rise happens gradually, over thousands of years. But today, carbon dioxide levels are skyrocketing as humans burn long-buried fossil fuels. 
CO2 in the atmosphere has gone up 100 ppm in my lifetime, said Kathleen Benison, a geologist at West Virginia University who researches past climates. “That’s incredibly fast geologically. ....

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WVU geologist helps Mars rover select rock samples to bring back to Earth


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Kathleen Benison, WVU professor of geology, is part of a team of scientists consulting with the Mars rover about which rocks to bring back to Earth to study.
Photo by WVU
Photo by WVU
MORGANTOWN — One of the big questions in all of science has been does life exist outside of the Earth? Or is the Earth unique and the only planet that hosts living organisms?
In her research as a geologist at West Virginia University, Kathleen Benison has focused on weird environments. She has studied acid salt lakes that have “nasty” water compositions but life still thrives there. ....

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