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Ice-Age Rain Forest Found Moist, Cooler

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Science  04 Oct 1996:
Vol. 274, Issue 5284, pp. 35-36
DOI: 10.1126/science.274.5284.35


What happened to the tropical forests when an ice age gripped the world 18,000 years ago? This question has spurred two distinct debates for years: Climatologists have gathered conflicting data on tropical temperatures, and ecologists have squabbled about whether the Amazon rain forest dried out and fragmented. Now a pollen record from a lake deep in Amazonia, reported on page 85, suggests that the forest was definitely cooler than today, but still moist, and that tree cover was as dense as ever.


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