global overturning circulation
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Study Tracks an Abrupt Climate Shift as Ice Age Glaciers Began to Retreat
That change would have affected the monsoons, today relied on to feed over half the world’s population, and could have helped tip the climate system over the threshold for deglaciation.
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Exploring Rugged Hills & Turbulent Waters 4,500 Meters Down
Aboard a ship at the Mid-Atlantic Ridge, scientists are studying how the deepest and coldest waters mix with shallower waters, gaining heat in the process.