BothGoodell and Kintisch make it clear that geoengineering is at best(充其量,至多)a complement to drastic cuts in carbon dioxide emissions. We have to immediately launch a worldwide program to stop pollutingour atmosphere with this surprisingly pernicious(有害的,有毒的;恶性的,致命的)trace gas, Kintisch argues. Most scientists feel much the same, viewinggeoengineering strictly as a possible emergency backup plan that should be usedonly if things get really dire. And because of the risks involved, the idea ofdoing field trials, especially of technologies for so-called solar radiationmanagement that is, blocking out sunlight in one wayor another is still contentious(爱争论的,有异议的;引起争论的)among scientists. But Goodell makes astrong argument in favour of at least some limited tests. He tells the tale ofCharles Hatfield, a travelling rainmaker who won acclaim across the UnitedStates in the early 1900s. When Hatfield tried to bring rain to San Diego andtorrential(奔流的;猛烈的;汹涌的)floods ensued( [in?sju:]接着发生,接踵而来,因而产生), he was hounded out of the city, his reputation in tatters(衣衫褴褛的;被粉碎的;彻底破产的). With geoengineering, writesGoodell, it might be smart to begin sorting good ideasfrom bad, lest we fall under the spell of another generation of CharlesHatfields. That is, if we do the research, thenperhaps we ll decide that some methods are best forgotten.
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