Scientists warn that 2023's extreme ocean heat may signal a major climate shift
Credit: NEOM/Unsplash

Scientists warn that 2023's extreme ocean heat may signal a major climate shift

A new federal report reveals that 2023 saw record-breaking ocean heat and dwindling cloud cover, suggesting unprecedented changes in Earth's climate.

Bob Berwyn reports for Inside Climate News.


In short:

  • The report highlights that 94% of the world’s oceans experienced a marine heatwave in 2023.
  • New classifications like "super-marine heatwaves" are being used to describe the extreme warming events.
  • Last year's record-low cloud cover allowed more solar heat to reach Earth’s surface.

Key quote:

“Sometimes people classify marine heatwaves from category one to category four, but a super-marine heatwave is above all that.”

— Xungang Yin, NOAA climate researcher

Why this matters:

These unprecedented marine heatwaves and reduced cloud cover could signify a rapid shift in global climate patterns. The resulting impacts on marine ecosystems and weather could have serious, long-term consequences.

Read more: Surprise! Unexpected ocean heat waves are becoming the norm

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