The Alarming Implications of Record-High Ocean Heat for Humans and Ecosystems.

Ocean temperatures have been at their highest levels in 40 years of satellite monitoring since mid-March 2023, with the sea of Japan being more than 7 degrees Fahrenheit warmer than average. El Niño is partly to blame, but global warming is the underlying cause. The effects of this ocean warming are being felt around the world, including weakened monsoons in South Asia, droughts in Norway, and the risk of marine heat waves in South America. To lower the risk, the world needs to reduce baseline warming by limiting excess greenhouse gas emissions and move to a carbon-neutral planet.