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Cave reveals Southwest's abrupt climate swings during Ice Age
Ice Age climate records from an Arizona stalagmite link the Southwest's winter precipitation to temperatures in the North Atlantic, according to new research. The stalagmite yielded an almost continuous, century-by-century climate record spanning 55,000 to 11,000 years ago, a time the Southwest flip-flopped between wet and dry periods. The finding is the first to document that the abrupt changes in Ice Age climate known from Greenland also occurred in the southwestern US.
Source: ScienceDaily