Global Ocean Heat Content Monitor
The ocean has absorbed 90%+ of excess planetary heat — tracked in zettajoules since 1955 (NOAA NCEI).
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Net ocean heat gain since 1955
— ZJ
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ZJ vs prior year
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at 0–2000 m (global)
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0–2000 m · total extra heat in product
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latest NCEI year
Global ocean heat (0–2000 m)
Each year: how much extra heat the global ocean holds (0–2000 m) vs NOAA’s baseline. Reliable from ~2005; the large total above uses the longer 0–700 m record from 1955.
Heat by ocean basin
What does that much heat mean?
Illustrative conversions of the cumulative 0–700 m gain — order-of-magnitude only.