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Fastest rate of natural carbon dioxide rise over the last 50k years
CORVALLIS, Ore. – Today’s rate of atmospheric carbon dioxide increase is 10 times faster than at any other point in the past 50,000 years, researchers have found through a detailed chemical analysis of ancient Antarctic ice. The findings, just published in the Proceedings of the National Academy of Sciences, provide important new understanding of abrupt climate change periods in Earth’s past and offer new insight into the potential impacts of climate change today. “Studying the past teaches us how today is different.
CORVALLIS, Ore. – Today’s rate of atmospheric carbon dioxide increase is 10 times faster than at any other point in the past 50,000 years, researchers have found through a detailed chemical analysis of ancient Antarctic ice. The rate of CO2 change today really is unprecedented,” said Kathleen Wendt, an assistant professor in Oregon State University’s College of Earth, Ocean, and Atmospheric Sciences and the study’s lead author. They identified a pattern that showed that these jumps in carbon dioxide occurred alongside North Atlantic cold intervals known as Heinrich Events that are associated with abrupt climate shifts around the world.
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