"The surface ocean currently absorbs about one-fourth of the CO2 emitted to the atmosphere from human activities, namely from fossil-fuel combustion, deforestation, and cement production. As this CO2 dissolves in seawater, it forms carbonic acid, increasing ocean acidity. Since industrialization began in the 18th century, surface-ocean acidity has increased by 30%.
This increase is now threatening the survival of coral reefs, shellfish and other marine organisms, the group claims. In fact, they issued a dire warning that if policymakers fail to make changes then by 2050 “ocean acidification may render most regions chemically inhospitable to coral reefs.”"
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