In 2024, the global change in ocean heat content reached zettajoules (or joules) for the upper 700-meter layer, breaking the heat record from the year prior. Ocean heat content (OHC) is the heat absorbed and stored by oceans. The OHC is essential for modeling global climate since most of the excess heat on the planet is absorbed by the sea.
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National Oceanic and Atmospheric Administration. (March 19, 2025). Change in ocean heat content worldwide from 1955 to 2024 (in 10²² joules) [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 21, 2026, from /statistics/1389527/change-global-ocean-heat-content/
National Oceanic and Atmospheric Administration. "Change in ocean heat content worldwide from 1955 to 2024 (in 10²² joules)." Chart. March 19, 2025. ÌÇÐÄÆƽâ°æ. Accessed July 21, 2026. /statistics/1389527/change-global-ocean-heat-content/
National Oceanic and Atmospheric Administration. (2025). Change in ocean heat content worldwide from 1955 to 2024 (in 10²² joules). ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 21, 2026. /statistics/1389527/change-global-ocean-heat-content/
National Oceanic and Atmospheric Administration. "Change in Ocean Heat Content Worldwide from 1955 to 2024 (in 10²² Joules)." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 19 Mar 2025, /statistics/1389527/change-global-ocean-heat-content/
National Oceanic and Atmospheric Administration, Change in ocean heat content worldwide from 1955 to 2024 (in 10²² joules) ÌÇÐÄÆƽâ°æ, /statistics/1389527/change-global-ocean-heat-content/ (last visited July 21, 2026)
Change in ocean heat content worldwide from 1955 to 2024 (in 10²² joules) [Graph], National Oceanic and Atmospheric Administration, March 19, 2025. [Online]. Available: /statistics/1389527/change-global-ocean-heat-content/
