https://www.eurekalert.org/pub_releases/2020-12/vt-lol121020.php
News Release 10-Dec-2020
Virginia Tech
Because of land use and climate change, lakes and reservoirs globally are seeing large decreases in oxygen concentrations in their bottom waters. It is well-documented that low oxygen levels have detrimental effects on fish and water quality, but little is known about how these conditions will affect the concentration of carbon dioxide and methane in freshwaters.
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"We found that low oxygen levels increased methane concentrations by 15 to 800 times at the whole-ecosystem scale," said Alexandria Hounshell, a postdoctoral researcher in the Department of Biological Sciences in the College of Science. "Our work shows that low oxygen levels in the bottom waters of lakes and reservoirs will likely increase the global warming potential of these ecosystems by about an order of magnitude."
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