New research about the carbon cycle in the Amazon River shows that carbon dioxide is released back into the Earth’s atmosphere much faster than scientists have expected. This has interesting implication on global warming calculations and dealing with carbon sequestration. The rivers of South America’s Amazon basin are “breathing” far harder - and cycling the greenhouse gas carbon dioxide far faster - than anyone realized. Most of the carbon being exhaled as carbon dioxide from Amazonian rivers and wetlands has spent a mere five years sequestered in the trees, plants and soils of the surrounding landscape, researchers report in the July 28 issue of the journal Nature.
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