"The Indo-Pacific region, home to 75 percent of the world's coral reefs, has lost nearly 600 square miles of reef each year since the late 1960s."
http://news.bbc.co.uk/2/hi/science/nature/6936634.stm
"We have already lost half of the world's reef-building corals," says team lead John Bruno.
"We can do a far better job of developing technologies and implementing smart policies that will offset climate change."