Ken Nedimyer is working to save dying coral reefs in the Florida Keys . He and his team are growing coral in nurseries before transplanting them to the wild . Ken : Coral reefs are critical to marine life , many economies . Nedimyer 's methods for growing corals have evolved over the years , but they 're all simple , easily duplicated and can be taught to anyone who can dive , he said . Do you want a hero ? Nominations are open for all CNN affiliates .
Ken Nedimyer is working to save dying coral reefs in the Florida Keys . He and his team are growing coral in nurseries before transplanting them to the wild . Ken : Coral reefs are critical to marine life , many economies . Do you want a hero ? Nominations are open for all CNN affiliates .