This coral reef resurrected itself — and showed scientists how to replicate it
While scientists studied a coral reef ecosystem in the South Pacific, rising temperatures led them to believe it was doomed. Then, something miraculous happened.
Though they may not know it, about half a billion people worldwide depend on the ecosystems created and sustained by corals. And with climate change threatening coral's survival, marine scientist Enric Sala had a goal that might have seemed impossible.
"We wanted to get into a time machine, go back hundreds of years and actually see a coral
