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International scientists warned Monday that more than a quarter of the world's coral reefs have been destroyed by pollution and global warming, and that (い) serius steps are quickly taken, most of the remaining reefs may be dead in 20 years. ..... Valerie Paul, a professor at the University of Guam, said that the loss of the coral reefs would also be a serious problem for the medical industry, which is exoloring the possibility that the marine ecosystems may unlock secrets to new medicines.
――桃山学院大学――2002年
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