Coral reefs are among the most diverse ecosystems on Earth, yet they are under serious threat. Rising ocean temperatures, pollution, and overfishing have caused widespread coral bleaching. When corals lose their colour, it means they are stressed and may die. Scientists are working to protect reefs by creating marine parks and studying coral resilience. Some communities are planting new coral and reducing plastic waste. Coral reefs not only support marine life but also protect coastlines from erosion. If we lose them, entire food chains could collapse. It’s a global issue that requires urgent action.