In 2024, global sea temperatures hit record highs, according to a study in Advances in Atmospheric Sciences. A team of 54 researchers from seven countries used diverse instruments, including Argo floats and expendable bathythermographs, to collect extensive ocean data. Notably, three metrics—global sea surface temperature, average global sea surface temperature, and temperature up to 2,000 meters deep—set new records. A significant rise in ocean heat content, attributed to both climate change and El Niño effects, contributed to a sea level rise of 1.0 millimeters. This increase exacerbates risks such as coastal erosion and intense storms. Researchers emphasize the need for ongoing climate change mitigation and global scientific collaboration.