Scientists say record ocean heat has nearly wiped out two cornerstone coral species across Florida’s reefs.

Scientists report that record-breaking ocean temperatures in 2023 have devastated Florida’s coral reefs, killing off two of the region’s most important coral species. A new survey by the National Oceanic and Atmospheric Administration (NOAA) and university researchers found that staghorn and elkhorn corals—once dominant along the Florida Keys—have suffered near-total mortality. The extreme heat triggered one of the worst bleaching events ever recorded, leaving vast stretches of reef barren and threatening the ecosystems that depend on them.








