Amazon Didn't Grow Until 2,000 Years Ago After Climate Change

July 8, 2014 12:27 PM

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A new study has been released that challenges common belief that the world's largest tropical forest is older than 2,000 years.

There is a good chance that swathes of the Amazon may have been grassland until a natural shift to a wetter climate about 2,000 years ago let the rainforests form, according to the study, which was published in the U.S. journal Proceedings of the National Academy of Sciences (PNAS).

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