单选题 It seems impossible to have an honest conversation about global warming. I say this after diligently perusing the British government's huge report released last week by Sir Nicholas Stern, former chief economist of the World Bank and now a high civil servant. The report is a masterpiece of misleading public relations. It foresees dire consequences if global warming isn't curbed: a worldwide depression and flooding of many coastal cities. Meanwhile, the costs of minimizing these awful outcomes are small: only 1 percent of world economic output in 2050.
No sane person could fail to conclude that we should conquer global warming instantly, if not sooner. Who could disagree? Well, me. Stem's headlined conclusions are intellectual fictions. They're essentially fabrications to justify an aggressive anti-global-warming agenda. The danger of that is that we'd end up with the worst of both worlds: a program that harms the economy without much cutting of greenhouse gases.
Let me throw some messy realities onto Stern's tidy picture. In the global-warming debate, there's a big gap between public rhetoric and public behavior. Greenhouse emissions continue to rise despite many earnest pledges to control them. Just last week, the United Nations reported that of the 41 countries it monitors (not including most developing nations), 34 had increased greenhouse emissions from 2000 to 2004. These include most countries committed to reducing emissions under the Kyoto Protocol.
Why is this? In rich democracies, policies that might curb greenhouse gases require politicians and the public to act in exceptionally "enlightened" ways. They have to accept "pain" now for benefits that won't materialize for decades, probably after they're dead. And even if rich countries cut emissions, it won't make much difference unless poor countries do likewise and so far, they've refused because that might jeopardize their economic growth and poverty-reduction efforts.
The notion that there's only a modest tension between suppressing greenhouse gases and sustaining economic growth is highly dubious. Stern arrives at his trivial costs—that 1 percent of world GDP in 2050—by essentially assuming them. His estimates presume that, with proper policies, technological improvements will automatically reconcile declining emissions with adequate economic growth. This is a heroic leap. To check warming, Stern wants annual emissions 25 percent below current levels by 2050. The IEA projects that economic growth by 2050 would more than double emissions. At present, we can't bridge that gap.
The other great distortion in Stern's report involves global warming's effects. No one knows what these might be, because we don't know how much warming might occur, when, where, or how easily people might adapt. Stern's horrific specter distills many of the most terrifying guesses, including some imagined for the 22nd century, and implies they're imminent. The idea is to scare people while reassuring them that policies to avert calamity, if started now, would be fairly easy and inexpensive.

单选题 According to the author, Stern's program
【正确答案】 C
【答案解析】作者对Stern爵士的报告进行了严厉的驳斥,认为他的报告夸大了目前我们所面临的困境,但同时又过于简单化地看待解决全球变暖问题的复杂前景。在第二段作者总结说,如果按照stern的激进方案行事,我们既会影响经济的持续发展,又不能达到减少温室气体排放量的目的。这就是作者所谓的the worst of both worlds。
单选题 The author agrees with Stern that
【正确答案】 A
【答案解析】从第二段来看,作者显然也认为应该解决全球变暖问题,他只是认为Stern提出的建议过于激进(aggressive),忽视了现实(见第三、四段),过于理想化(见第五段)。
单选题 The author asserts that Stem's picture about the possibility of conquering global warming
【正确答案】 B
【答案解析】作者在第三、四、五段指出,Stern的报告忽视了复杂的现实,把减少全球变暖的努力看得过于简单。
单选题 In the fifth paragraph, "that gap" refers to the gap between
【正确答案】 B
【答案解析】在第五段最后一句中,that gap指上两句提到的实际排放水平和Stern设定的目标。
单选题 In his report, Stern overstates
【正确答案】 D
【答案解析】第一段提到,Stern在报告中描述了如果我们不战胜全球变暖会面临的可怕前景,最后一段中再次提到Stern描述的可怕前景。在作者看来,Stern夸大了这些后果,是用来吓唬人的,Stern的目的是为他提出的解决方案作出辩解。