World’s Seas Hit Hottest Temperature on Record for July, Scientists Say

Scientists report the world’s oceans hit the hottest temperature on record for July, as marine heat builds when oceans absorb excess heat from greenhouse gas emissions. Data analysts say average daily sea-surface temperatures surpassed previous records, appearing earlier and warmer than expected for this time of year. Researchers warn that hotter seas can reduce ocean oxygen, intensify marine heatwaves, disrupt ecosystems, and contribute to more frequent coral bleaching and other impacts. They point to ongoing climate change as the main driver, with factors like El Niño affecting timing.