Climate change could bleach 99% coral reefs by 2100: Study
Almost 99% of the world's coral reefs could undergo severe bleaching by 2100 due to climate change, a recent study has claimed. When sea water turns warmer than usual, corals expel the symbiotic algae living in their tissues, causing them to turn white. Although bleaching does not kill the corals instantly, it makes them more vulnerable to fatal diseases.