Great Barrier Reef suffers worst coral decline on record

Getty ImagesAustralia's Great Barrier ReefParts of the Great Barrier Reef have suffered the largest annual decline in coral cover since records began nearly 40 years ago, according to a new report.Northern and southern branches of the sprawling Australian reef both suffered their most widespread coral bleaching, the Australian Institute of Marine Science (AIMS) found.Reefs have been battered in recent months by…