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Ocean Acidification around the UK and Ireland

Findlay, H.S.; Artioli, Y.; Greenwood, N.; Hartman, S. ORCID: https://orcid.org/0000-0002-6363-1331; Flohr, A. ORCID: https://orcid.org/0000-0002-5018-5379; León, P.; Stiasny, M.; Cronin, M.. 2025 Ocean Acidification around the UK and Ireland. MCCIP Science Review 2025. 10.14465/2025.reu03.oac

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Abstract/Summary

Atmospheric CO2 exceeded 420 ppm in 2024 and has continued to increase by approximately 2.5 ppm per year over the last decade. The global ocean absorbs approximately a quarter of anthropogenic carbon dioxide (CO2) emissions annually. The North Atlantic Ocean contains more anthropogenic CO2 than any other ocean basin, and surface waters are experiencing an ongoing decline in pH (increasing acidity). Rates of acidification in bottom waters are occurring faster at some locations than in surface waters. Some species are already showing effects from ocean acidification when exposed to short-term fluctuations and could be used as indicator species for long-term impacts on marine ecosystems.

Item Type: Publication - Article
Digital Object Identifier (DOI): 10.14465/2025.reu03.oac
Date made live: 25 Mar 2025 14:45 +0 (UTC)
URI: https://nora.nerc.ac.uk/id/eprint/539153

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