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In this news article researchers report on a chemical analysis of stalagmites recovered from a cave in Ecuadorean Amazonia that provides a record of changes in rainfall for almost the last 100,000 years. The data show that Amazonia remained wet for that entire period, although there were rapid changes to drought and wet events. These rapid changes in rainfall correlated closely with changes in sea-surface temperature in the North Atlantic Ocean. [Source: Florida Institute of Technology]
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