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Earth is simmering in its hottest water temps on record, and that’s bad for fish and us

Earth is simmering in its hottest water temps on record, and that’s bad for fish and us

Summary

The Earth’s oceans reached their highest recorded temperatures recently, caused by a strong natural El Niño event combined with human-driven climate change. This warming harms marine life, disrupts weather patterns, and increases risks like stronger storms and heat waves.

Key Facts

  • Ocean temperatures hit 21.1°C (70°F), breaking the previous record set in March 2024.
  • The warming is driven by a large El Niño and long-term human-caused climate change.
  • Warmer oceans reduce oxygen and increase acidity, damaging seafood industries.
  • Warm oceans change weather, causing stronger storms and bigger storm surges.
  • This summer, ocean temperatures peaked unusually early and are expected to rise further.
  • El Niño, a natural warming pattern in the Pacific, is predicted to peak between November and January.
  • Ocean warming also worsens heat waves by stopping cooling sea breezes at night.
  • The ocean has warmed by about 0.8°C (1.4°F) due to fossil fuel use over time.
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