A marine heat wave is warming the waters off the coast of Florida, pushing temperature readings as high as 101 Fahrenheit and endangering a critical part of sea life: the coral reef.Catrin Einhorn, who covers biodiversity, climate and the environment for The Times, discusses the urgent quest to save coral and what it might mean for the world if it disappears.Guest: Catrin Einhorn, a biodiversity, climate and environment correspondent for The New York Times.Background reading: A desperate push to save Florida’s coral reef, by getting it out of the sea.Measuring and comparing sea surface temperatures is complex, but scientists agree on one thing: 101 Fahrenheit in the ocean off Florida is bad news for wildlife.For more information on today’s episode, visit nytimes.com/thedaily. Transcripts of each episode will be made available by the next workday.