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Hot and sour in the deep ocean

Stable layering in the ocean limits the rate that human-derived carbon dioxide can acidify the deep ocean. Now observations show that ocean warming, however, can enhance deep-ocean acidification through increased organic matter decomposition.

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This work is supported by NOAA Climate Program Office and NOAA PMEL; PMEL contribution no. 4724.

Author information


  1. NOAA Pacific Marine Environmental Laboratory, Seattle, WA, USA

    • Christopher L. Sabine


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Corresponding author

Correspondence to Christopher L. Sabine.