Scientists Just Uncovered a 3 Million-Year Climate Mystery in Antarctic Ice
2 Articles
2 Articles
Scientists just uncovered a 3 million-year climate mystery in Antarctic ice
Ancient Antarctic ice is revealing a surprising new chapter in Earth’s climate story, stretching back 3 million years. By analyzing tiny pockets of trapped air and rare gases, scientists have discovered that while the planet cooled significantly—especially in the oceans—levels of key greenhouse gases like carbon dioxide and methane changed only modestly. This unexpected mismatch suggests other powerful forces, such as shifting ice sheets, ocean …
In the dry valleys of the Transantarctic mountains there is ice that has been frozen since before the genus Homo existed on Earth. A team from Rutgers University, headed by biogeochemist Kay D. Bidle, drilled that ice, extracted microorganisms trapped in it and got some metabolized again after remaining inactive [...]
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