Tuesday March 19, 2024


The world’s oceans have now experienced an entire year of unprecedented heat, with a new temperature record broken every day, new data shows.

Global ocean surface temperatures started breaking daily records in mid-March last year, according to data from the National Oceanic and Atmospheric Administration (NOAA) and the University of Maine’s Climate Reanalyzer, fueling concerns for marine life and extreme weather across the planet.

“The amplitude by which previous sea surface temperature records were beaten in 2023, and now again in 2024, is remarkable,” said Joel Hirschi, associate head of marine systems modeling at the National Oceanography Centre in the UK.

Global average ocean temperatures in 2023 were 0.25 degrees Celsius warmer than the previous year, said Gregory C. Johnson, a NOAA oceanographer. That rise is “is equivalent to about two decades’ worth of warming in a single year,” he told CNN. “So it is quite large, quite significant, and a bit surprising.”

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