Grist: We have a new competitor for the worst place on Earth to be a coral! More than half of the coral reefs in the Maldives have been hit by a wave of bleaching this year, according to a new survey conducted by a team of researchers. Signs of bleaching were found in around 60 percent of the study areas total number of corals in some segments of the reef, the percentage of corals affected was as high as 90 percent. The biodiversity-rich area is home to some 3 percent of the planets corals. The...