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Horses near Lake Dali, in Inner Monglia. Photo: Yonaton Goldsmith

Shifting Monsoon Altered Early Cultures in China, Study Says

The annual summer monsoon that drops rain onto East Asia has shifted dramatically, at times moving northward by as much as 400 km and doubling rainfall in that northern reach. The monsoon’s changes over the past 10,000 years likely altered the course of early human cultures in China, say the authors of a new study.

by |February 6, 2017
Coauthor Pierre Dutrieux with an instrument that detects fluctuations in ocean water, Terra Nova Bay, Antarctica, Jan. 31, 2017. A similar instrument was used to show why fresh water from melting ice shelves settles far below the surface instead of rising. (Courtesy Pierre Dutrieux/Lamont-Doherty Earth Observatory

Scientists Say They Now Know Why Antarctic Meltwater Stays Below Ocean Surface

Up to now, it has been a mystery why much of the fresh water resulting from the melting of Antarctic ice shelves ends up in the depths instead of floating above saltier, denser ocean waters. Scientists working along one major ice shelf believe they have found the answer.

by |February 2, 2017