"You could find wealthy parents buying the latest 'upgrades' for their children, leading to even greater unfairness than we already live with," Marcy Darnovsky, director of the San Francisco Center for Genetics told BBC News.
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许多科学家认为,由于气候变化,太平洋变暖引起的厄尔尼诺现象正愈演愈烈。
Many scientists believe that El Nino events, caused by warming in the Pacific, are becoming more intense as a result of climate change.