Overtourism, climate change and environmental pollution have caused extensive damage to coral reefs in Pingtung County over the past few months, a report said on Oct. 26. The study was conducted by researchers at National Sun Yat-sen University, the National Museum of Natural Science and the National Museum of Marine Biology and Aquarium. It was published on the Web site of the Taiwan Environmental Information Association. The number of organisms and species observed near Siaoliouciou Island (小琉球) had declined by 80 percent in July and August, the study said. Coral reef coverage — the ...