Gulf Stream Slowdown in Progress?

peacefinder writes "Researchers report that one process which drives the Gulf Stream is slowing down. As that current is part of the global oceanic heat conveyor which keeps parts of Europe and North America warmer than would be expected for their latitudes, such a slowdown might lead to abrupt climate change."

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Demise of the Maya

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A TV program a while back highlighted research investigating just why huge indigenous populations of Central America mysteriously disappeared around 800.

Lakebed sediment cores suggested a fairly severe multi-year drought around that time that was linked (through that Atlantic conveyor) to some severe winters in northern Europe. That drought was thought to disrupt agriculture that those cultures relied upon.