Study finds ocean impacts nearly double economic cost of climate change
Peer-Reviewed Publication
Updates every hour. Last Updated: 16-Jan-2026 22:11 ET (17-Jan-2026 03:11 GMT/UTC)
For the first time, a study from researchers at Scripps Institution of Oceanography at the University of California San Diego integrates climate-related damages to the ocean into the social cost of carbon— a measure of economic harm caused by greenhouse gas emissions.
An international study, featuring CMCC scientists, reveals that the true economic damage of climate change has been vastly underestimated – because the ocean has been left out of the equation. By integrating the latest ocean science into climate-economic models, researchers found that accounting for climate impacts on marine ecosystems and ocean-dependent infrastructure nearly doubles the social cost of carbon. The hidden ocean cost is estimated at $48 per tonne of CO₂, a figure that should be added to current policy calculations.
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Home to hundreds of millions of people, until now it was unclear what the rate of delta elevation loss is, or what is driving delta subsidence.
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