Summary: The text discusses the impact of climate change on coral reefs, highlighting the increasing frequency and intensity of marine heatwaves that pose a significant threat to their survival. These heatwaves have been linked to bleaching events, where corals expel the algae living in their tissues, leading to a loss of color and eventually death. The loss of coral reefs has wide-reaching consequences for marine ecosystems, as they provide essential habitat and nurseries for a diverse range of marine species. Researchers have found that previous strategies to protect coral reefs, such as managing local stressors like overfishing and pollution, are no longer enough to prevent the devastating effects of climate change. Urgent global action is needed to address the root cause of the problem by reducing greenhouse gas emissions and mitigating the impacts of rising ocean temperatures on coral reefs.