Scientists and volunteers are replanting coral reefs where they are bleached or have disappeared. Identifying heat-tolerant corals is key.

Go behind the scenes with executive editor Vernon Loeb and oceans correspondent Teresa Tomassoni as they discuss the search for heat-resilient coral reefs that are somehow defying…

Scientists and volunteers are replanting coral reefs where they are bleached or have disappeared. Identifying heat-tolerant corals is key.