The picture shows Coral Bleaching, Lizard Island, Great Barrier Reef, Before (March 2016) & After (May 2016) caused by Global Warming of Ocean Temperatures.
Global warming has a significant and detrimental impact on coral reefs. Rising ocean temperatures, caused by increased greenhouse gas emissions, lead to coral bleaching—a phenomenon where corals expel the symbiotic algae (zooxanthellae) that provide them with nutrients and vibrant colors. Prolonged bleaching can result in coral death. Additionally, global warming exacerbates ocean acidification, as excess carbon dioxide dissolves in seawater, reducing its pH. Acidic waters weaken coral skeletons, impairing their growth and resilience.
Warmer seas also increase the frequency and intensity of extreme weather events, such as hurricanes, which physically damage coral reefs. Rising sea levels can further reduce the light penetration needed for photosynthesis in corals. Combined with pollution, overfishing, and coastal development, global warming threatens coral reefs, endangering marine biodiversity and the livelihoods of millions of people who depend on reef ecosystems.
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