How ocean circulation changed atmospheric CO2
Sydney, Australia (SPX) Oct 02, 2015 - Scientists have struggled for the past few decades to understand why air temperatures around Antarctica over the past one million years were almost perfectly in synch with atmospheric CO2 concentrations. Both dipped down during glacial ice ages and back up again during warm interglacials. By contrast, temperatures in the tropics and Northern Hemisphere were less closely tied to atmospheric ... more

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