Florida Keys coral reefs bleaching early due to record heat linked to climate change

Some Florida Keys coral reefs are losing color earlier than normal due to high temperatures.
Corals expel algae and turn white in a process called bleaching when waters get too warm.
Bleaching can starve and weaken coral, making them prone to disease.
Scientists attribute the warming waters to climate change, posing an urgent threat to coral reefs.
Efforts are underway to help corals survive, but reducing emissions is key to protecting reefs long-term.