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Academic rigour, journalistic flair

Ellie Broadman

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  • Postdoctoral Research Associate in Climate Science, University of Arizona
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Natural records suggest a cooling trend was underway thousands of years ago. DeAgostini/Getty Images
February 15, 2023

Was Earth already heating up, or did global warming reverse a long‑term cooling trend?

Ellie Broadman, University of Arizona and Darrell Kaufman, Northern Arizona University

Evidence in Earth’s natural archives, from tree rings to seafloor sediments, points to one trend. Some climate models suggest another.
  • Location: Tucson, Arizona, U.S.
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