Coastal development and overfishing contribute to decline
Climate change, coastal development and overfishing have effectively wiped out nearly a fifth of the world's coral reefs, and by the end of this century they "are unlikely to look much like the reefs that we are familiar with today," said Peter Mumby, a marine biologist at the University of Queensland in Australia, who envisions smaller and weaker reefs that harbor fewer fish.
"But there will still be reefs and they will still be very important," he said. "And so what we really have to do is take all the steps we can locally to preserve reefs for future generations, including Australia's Great Barrier Reef, shown here.
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