New data confirms that the world’s oceans absorbed a record amount of heat in 2025, continuing a trend that is fueling more extreme weather globally. Scientists report that over 90% of the heat trapped by human carbon emissions is taken up by the oceans, leading to more intense hurricanes, marine heatwaves, and rising sea levels. The findings highlight ocean warming as a critical indicator of the climate crisis, with deep-reaching impacts on marine ecosystems and global weather patterns.
Date: January 9, 2026. Source: theguardian.com