Coral reefs around the world have taken big hits over the past decade as ocean temperatures rise. During a recent 3-year global event, roughly half of the corals in the Great Barrier Reef succumbed to what’s called coral bleaching. And here in Florida, corals are facing a rapidly spreading disease called White Plague which has decimated many coral species off the Southeast Florida coast. Today we’ll talk with Dr. William Precht , who has studied the disease to learn more.