How humans are engineering the future of coral reefs

How do you bring back a vanishing coral reef? That’s what conservationists are racing to do in the Florida Keys, where they’re coming up with a whole new playbook for saving corals.

Over the summer, they did what used to be the unthinkable: they took thousands of corals out of the sea to save them from a killer ocean heatwave. Hot tub-like temperatures might have wiped them out otherwise. Now, what’s next?

The Verge visited the evacuated…