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Ocean’s ability to absorb carbon is weakening as climate change intensifies, UN warns

Science · en

Ocean’s ability to absorb carbon is weakening as climate change intensifies, UN warns

UN News · Official source · Oct 28, 2026, 12:00 PM UTC

The ocean absorbs around 30 per cent of human-caused carbon dioxide (CO₂) emissions and 90 per cent of excess heat trapped by greenhouse gases. But climate change has already reduced its capacity to absorb carbon by approximately six per cent, a new UN report warns ahead of the COP31 climate conference in November.