Ocean acidification (Q849)
Subject, term, tag: Ocean acidification
- Ocean acidification (OA)
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Ocean acidification |
Subject, term, tag: Ocean acidification |
|
Statements
IPCC Glossary v1.5
1 reference
27 May 2026
A reduction in the pH of the ocean, accompanied by other chemical changes (primarily in the levels of carbonate and bicarbonate ions), over an extended period, typically decades or longer, which is caused primarily by uptake of carbon dioxide (CO2) from the atmosphere, but can also be caused by other chemical additions or subtractions from the ocean. Anthropogenic OA refers to the component of pH reduction that is caused by human activity (IPCC, 2011, p. 37). (English)
IPCC Glossary v1.5
1 reference
27 May 2026