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Great Barrier Reef

  • 13 Aug 2024

In August, 2024, a new study has shown that the Great Barrier Reef is experiencing its highest sea surface temperatures in 400 years, with temperatures 0.19°C above the previous record. This rise has caused extensive coral bleaching.

Key Points

  • Coral Bleaching Impact: The bleaching results from corals expelling the algae that provide them with nutrients and color, leaving them vulnerable to disease and death.
  • Study Findings: Study reveals that recent summer temperatures are 1.7°C higher than the coolest summers over the past 400 years. Researchers used historical sea surface temperature data from various sources, including coral cores.
  • UNESCO Controversy: The study's findings have led to criticism of UNESCO's decision not to reclassify the reef as “in danger,” with scientists arguing that the reef is at immediate risk.
  • Call for Action: Experts emphasize the urgent need for global emission reductions to protect the reef. Despite the dire situation, there is hope if swift action is taken to mitigate climate impacts.