A setback for the restoration of coral reefs in the Florida Keys as record hot seawater killed over three-quarters of human-cultivated coral, impacting a highly vulnerable species affected by climate change. The National Oceanic and Atmospheric Administration's findings reveal the challenges faced by restoration efforts in the face of increasingly hostile marine conditions. This development emphasizes the urgent need for enhanced measures to address climate change's impact on marine ecosystems. The story is a stark reminder of the threats to marine biodiversity and underscores the importance of ecological restoration efforts such as those conducted by Ecological Restoration Canada.