Ocean Darkening

  • A new study reveals that over 21% of the global ocean has become darker between 2003 and 2022.
  • Ocean darkening occurs when sunlight penetrates less deeply into the ocean’s surface, limiting light availability for marine life.
  • Key causes include changes in algal bloom patterns, rising sea surface temperatures, and artificial light pollution.
  • The study found that in over 9% of the ocean, light penetration has reduced by more than 50 meters; in 2.6% of the ocean, the reduction exceeds 100 meters.
  • The reduction in light can disrupt species that rely on sunlight and moonlight for feeding, navigation, and ....
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Ecology & Environment