CBS: It looks like 2015 is shaping up to be a bad year for coral reefs.
The National Oceanic and Atmospheric Administration warned this week that warm waters in the tropical Pacific and Indian Oceans spark widespread coral bleaching across the world this year - making it the third time in less than two decades that this has occurred.
Reefs are one of the world's most important ecosystems, supporting more species than any other marine environment including 4,000 fish species. They are also a crucial...