This photo supplied by the Great Barrier Reef Marine Park Authority (GBRMPA) shows diseased corals at a reef in the Cairns/Cooktown on the Great Barrier Reef in Australia, April 27, 2017. N. Mattocks/GBRMPA via AP
Rod McGuirk Associated Press CANBERRA, Australia (AP) — More than 90% of Great Barrier Reef coral surveyed this year was bleached in the fourth such…
