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Conservation Science for a Healthy Planet

Coastal water absorbing more carbon dioxide

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January 31, 2018 University of Delaware read full ScienceDaily article here

Oceanographers reveal that the water over the continental shelves is shouldering a larger than expected portion of atmospheric carbon dioxide. The findings may have important implications for scientists focused on understanding how much carbon dioxide can be released into the atmosphere while still keeping warming limited.

As more carbon dioxide enters the atmosphere, the global ocean soaks up much of the excess, storing roughly 30 percent of the carbon dioxide emissions coming from human activities.

In this sense, the ocean has acted as a buffer to slow down the greenhouse gas accumulation in the atmosphere and, thus, global warming. However, this process also increases the acidity of seawater and can affect the health of marine organisms and the ocean ecosystem.

New research by University of Delaware oceanographer Wei-Jun Cai and colleagues at Universit√© Libre de Bruxelles, Texas A&M University-Corpus Christi, University of Hawaii at Manoa and ETH Zurich, now reveals that the water over the continental shelves is shouldering a larger portion of the load, taking up more and more of this atmospheric carbon dioxide….

Goulven G. Laruelle, Wei-Jun Cai, Xinping Hu, Nicolas Gruber, Fred T. Mackenzie, Pierre Regnier. Continental shelves as a variable but increasing global sink for atmospheric carbon dioxide. Nature Communications, 2018; 9 (1) DOI: 10.1038/s41467-017-02738-z

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