The successor to the international Kyoto climate-change treaty will likely do too little, and emissions reductions will be too late to save the world’s coral reefs from the ravages of global warming, according to a cheery new study by U.S. researchers. Even if the world’s nations agree to meet the ambitious emissions targets favored by Europe, which is unlikely, some 90 percent of coral reefs would still be pretty much hosed. Happy snorkeling!