CO2 causing rapid ocean acidification – UN report

Ocean acidity could increase by 150% by 2050 as seas absorb about one quarter of the carbon dioxide emitted to the atmosphere by human activities, according to a report released by the UN's environment programme (UNEP) Monday.

The report provides an update on the impact of acidification on marine ecosystems. Acidification will follow the increase in CO2 emissions and could increase to 185% by 2100, the authors warn. A first in-depth assessment was published in 2005.

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