2. 考研
  3. Between 1998 and 2013 , the Earth’s surface temperature rose at a rate of 0. 04°C a decade, far slower than the 0. 18°C increase

Between 1998 and 2013 , the Earth’s surface temperature rose at a rate of 0. 04°C a decade, far slower than the 0. 18°C increase

admin2016-03-21  76
问题     Between 1998 and 2013 , the Earth’s surface temperature rose at a rate of 0. 04°C a decade, far slower than the 0. 18°C increase in the 1990s. Meanwhile, emissions of carbon dioxide rose continuously. This pause in warming has raised doubts in the public mind about climate change. A few sceptics say flatly that global warming has stopped. Others argue that scientists’ understanding of the climate is so flawed that their judgments about it cannot be accepted with any confidence. A convincing explanation of the pause therefore matters both to a proper understanding of the climate and to the credibility of climate science—and papers published over the past few weeks do their best to provide one.
    As evidence piled up that temperatures were not rising much, some scientists dismissed it as a temporary phenomenon. The temperature, they pointed out, had fallen for much longer periods twice in the past century or so, in 1880- 1910 and again in 1945-75, even though the general trend was up. Variability is part of the climate system and a 15-year pause, they suggested, was not worth getting excited about.
    An alternative way of looking at the pause’s significance was to say that there had been a slowdown but not a big one. Most records, including one of the best known, do not include measurements from the Arctic, which has been warming faster than anywhere else in the world. Using satellite data to fill in the missing Arctic numbers, Kevin Cowtan of the University of York, in Britain, and Robert Way of the University of Ottawa, in Canada, put the overall rate of global warming at 0. 12°C a decade between 1998 and 2012. A study by NASA puts the "Arctic effect" over the same period somewhat lower, at 0.07°C a decade, but that is still not negligible.
    It is also worth remembering that average warming is not the only measure of climate change. According to a study just published by Sonia Seneviratne of the Institute for Atmospheric and Climate Science, in Zurich, the number of hot days, the number of extremely hot days and the length of warm periods all increased during the pause. A more stable average temperature hides wider extremes.
    Still, attempts to explain away that stable average have not been convincing, partly because of the conflict between flat temperatures and rising CO2 emissions, and partly because observed temperatures are now falling outside the range climate models predict. The models embody the state of climate knowledge. If they are wrong, the knowledge is probably faulty, too. Hence attempts to explain the pause.
The data of global warming from Kevin Cowtan and Robert Way is higher because______.
选项 A、their theory is unconventional
B、they take the Arctic into account
C、their measuring method is different
D、they neglect some important statistics
答案B
解析 根据题干的Kevin Cowtan和Robert Way定位到第三段第三句：Using satellite data tofill in the missing Arctic numbers，Kevin Cowtan of the University of York，in Britain，and Robert Way…文章前面就提到许多记录数据都没有包括北极，该句又明确指出fill in the missing Arctic numbers“填入了缺失的北极数据”，从而Kevin Cowtan和Robert Way得出一个更高的数据，由此可见该题的正确答案是[B]项they take the Arctic into account“他们把北极考虑在内”。而[C]项their measuring method is different“他们的测量方法不同”则显得过于笼统，[A][D]则是无中生有。
转载请注明原文地址:https://kaotiyun.com/show/84sZ777K
0

考研英语一

相关试题推荐
随机试题
最新回复(0)