This year's extreme heat is putting the world's coral reefs under such severe stress that scientists fear widespread die-offs, endangering not only the richest ecosystems in the ocean but also fisheries that feed millions of people.

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This year's extreme heat is putting the world's coral reefs under such severe stress that scientists fear widespread die-offs, endangering not only the richest ecosystems in the ocean but also fisheries that feed millions of people.

Authors Website: http://sheilastuff.blogspot.com

Authors Bio:

Sheila Samples is an Oklahoma writer and a former civilian US Army Public Information Officer. She is a Managing Editor for OpEd News, and a regular contributor for a variety of Internet sites.