Million-Year-Old Arctic Sedimentary Record Sheds Light on Climate Mystery That Has Puzzled Scientists

[ad_1] Lake El´gygytgyn is an impact crater lake located in the Chukotka Autonomous Okrug in northeast Siberia. Credit: UMass Amherst Oldest continuous arctic record is a step toward understanding dramatic shift in glacial cycles. New research is the first to provide a continuous look at a shift in climate, called the Mid-Pleistocene Transition, that has […]

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Variations in Climate Don’t Drive Evolutionary Change As Much as Previously Thought

[ad_1] During the dry season, evaporating water leaves behind trona crystals, which grow on the lakebed of Lake Magadi, the southernmost lake in the Kenyan Rift Valley. A drilling rig used in the study is seen towering above the dry lakebed. Credit: Andrew Cohen/University of Arizona Combining climate change records over the last 3.5 million […]

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