Heat-Tolerant Corals Found Across Great Barrier Reef Offer Hope for Adaptation

New research reveals significant genetic variation in coral heat tolerance, crucial for reef restoration amid climate change.

Researchers measured bleaching thresholds of over 500 coral colonies from 17 reefs on the Great Barrier Reef, identifying widespread heat tolerance.
Studies show that genetic differences, not just environmental factors, contribute to the variation in heat tolerance among corals.
Heat-tolerant corals could be used in selective breeding programs to produce offspring better suited to warmer waters.
The discovery is critical as the Great Barrier Reef faces its fourth global mass bleaching event due to unprecedented sea temperatures.
Reducing greenhouse gas emissions remains essential for the long-term survival of coral reefs, alongside restoration efforts.