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告别了放纵与自由,新学期将我们领进英语的殿堂.一切将要展开新的一页，让我们一起来阅读小学生阅读集训：Greenhouse gases making hurricanes stronger吧~~ Hurricane breeding grounds (发源地) in the Atlantic and Pacific oceans are being warmed by greenhouse gases, probably making hurricanes stronger in coming decades, according to a new study by the Proceedings of the National Academy of Sciences (PNAS). The scientists used 22 climate models to investigate the possible causes of a rise in sea surface temperatures (SST) of up to 0.67℃ in the Atlantic and Pacific tropics (热带地区) from 1906 to 2005. Each computer model was run several times to work out how much the SST would have warmed with or without rising levels of greenhouse gases and other pollutants. Weve used all the worlds climate models to study the causes of the SST changes in hurricane formation regions, Santer said. They found that tiny particulates (微粒) from volcanoes and sulfates (硫酸盐) from industrial plants blocked the sun, and so cooled the oceans. But the effect was overcome by the rise in greenhouse gases, which led to warmer oceans. The important conclusion is that the observed SST increases in the regions cannot be explained by natural processes alone, said Tom Wigley, another researcher of the study, from the Boulder-based National Center for Atmospheric Research (NCAR). The best explanation for these changes has to include a large human influence. Also, Wigley warns that global temperatures and SSTs may increase even more rapidly over the next century. | 
