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Global Floating Kelp Forests Have Limited Protection Despite Intensifying Marine Heatwave Threats

MEDITERRANEAN SEA, JUL 1 – Sea surface temperatures in the western Mediterranean reached 30°C, with marine heatwaves now ten times more intense and lasting three times longer than pre-industrial levels, experts say.

  • In early July, waters off Spain hit a record 30°C, with anomalies up to 6°C above average, highlighting severe early-summer marine heatwave conditions.
  • Europe warms twice as fast as the global average, with the Mediterranean absorbing excess heat from greenhouse gases, driving record sea temperatures off Spain.
  • Mercator Ocean International data show anomalies of 5–6°C above average with mean SST around 26°C, forecasted to persist under severe marine heatwave conditions.
  • Severe marine heatwaves and record sea temperatures threaten ecosystems, strain infrastructure, and may cause lasting regional changes if climate action is not taken.
  • Without urgent action, the Mediterranean Sea may undergo permanent changes due to increasing heatwave frequency and intensity driven by climate change, risking irreversible ecosystem and regional transformation.
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Lean Left

The most intense warming within the so-called "marine heatwave" was observed in the western part of the Mediterranean Sea.

·Bratislava, Slovakia
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Lean Right

Ocean warming can have negative consequences for marine life.

·Netherlands
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regionalmedianews.com broke the news in on Tuesday, July 1, 2025.
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