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Almost 75% of Japan's biggest coral reef has died from bleaching, says report

Almost 75% of Japan's biggest coral reef has died from bleaching, says report
Almost three-quarters of Japan’s biggest coral reef has died, according to a report that blames its demise on rising sea temperatures caused by global warming. The Japanese environment ministry said that 70% of the Sekisei lagoon in Okinawa had been killed by a phenomenon known as bleaching. Bleaching occurs when unusually warm water causes coral to expel the algae living in their tissues, causing the coral to turn completely white. Unless water temperatures quickly return to normal, the coral eventually dies from lack of nutrition. The plight of the reef, located in Japan’s southernmost reaches, has become “extremely serious” in recent years, according to the ministry, whose survey of 35 locations in the lagoon last November and December found that 70.1% percent of the coral had died. The dead coral has now turned dark brown and is now covered with algae, the Yomiuri Shimbun said. The newspaper said the average...
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