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Earth's Oceans Hit Record Heat in 2025
19 Jan
Summary
- Oceans absorbed a record 23 zettajoules of heat in 2025.
- This heat contributes to rising sea levels and extreme weather.
- Urgent global action is needed to curb emissions and safeguard the future.

In 2025, Earth's oceans absorbed a staggering 23 zettajoules of heat, setting a new record. This massive energy gain underscores the escalating impact of climate change, with scientists from the Chinese Academy of Sciences highlighting ocean heat content as a critical indicator of global warming.
The absorbed heat is not evenly distributed, with regions like the tropical Atlantic and North Pacific experiencing accelerated warming. This trend of record-breaking ocean heat has persisted for nine consecutive years, exacerbating marine life devastation and causing sea levels to rise due to thermal expansion.
Experts emphasize that this excess heat fuels extreme weather, including heatwaves, droughts, and intense storms. The article concludes with a call for immediate global emissions reduction, referencing the Paris Agreement's goals to limit temperature increases and secure a sustainable future.




