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In 2005 the Amazon experienced a “once in a century” drought. Then the 2010 drought was even more severe. New research shows that such droughts can turn the Amazon rainforest from an absorber of carbon dioxide to a source of the gas.
In 2005, the Amazon experienced a once-in-a-century drought. Just five years later, the drought was even worse. University of Leeds Professor Oliver Phillips tells host Bruce Gellerman that such extreme droughts cause the Amazon to be a source of carbon dioxide instead of a carbon sink.