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Contact: Morgan Kelly
mgnkelly@princeton.edu
609-258-5729
Princeton University

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Caption: New research in the journal Nature found that for each degree that the Earth's temperature rises, the amount of methane entering the atmosphere from microorganisms dwelling in freshwater wetlands -- a primary source of the gas -- will increase several times. The researchers analyzed nearly 1,600 measurements of temperature and methane emissions from 127 freshwater ecosystems across the globe (above), including lakes, swamps, marshes and rice paddies. The size of each point corresponds with the average rate of methane emissions in milligrams per square meter, per day, during the course of the study. The smallest points indicate less than one milligram per square meter, while the largest-sized point represents more than three milligrams.

Credit: Image courtesy of Cristian Gudasz

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Related news release: A more potent greenhouse gas than CO2, methane emissions will leap as Earth warms


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