Coral Reefs Could Die Off Within the Century

Researchers are sounding the alarm about the world's coral reefs, declaring that one-third of reef-building species are now threatened with extinction. If the news sounds familiar, it's because researchers published a separate report about the dire condition of reef ecosystems in U.S. waters earlier this week. The new study widens the focus to look at all coral reefs throughout the world's oceans, and also issues a terrifying diagnosis: Unless action is taken, it is conceivable that the "rainforests of the ocean" could be wiped out this century....