但是如今一位生态学家提出，气候变化的效应将比人们认识到的更复杂——而且甚至可能减少一些传染病的发病率。

But now an ecologist argues that the effects of climate change will be more complex than has been acknowledged - and that there may even be a reduction in the incidence of some infectious diseases.

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报告的联合作者，一位来自美国地质学研究领域的科学家詹妮佛哈顿认为，有越来越多的证据表明，北部亚寒带地区的生态系统是受气候变化的影响最大，而这份报告则为这样的事实又增加了证明。

This study is part of a growing body of evidence that northern systems are bearing the brunt of climate change, said co-author Jennifer Harden, a U. S. Geological Survey scientist.

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