首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Global climate change, often seen as a process stretching over thousands of years, could in fact occur abruptly and unexpectedly
Global climate change, often seen as a process stretching over thousands of years, could in fact occur abruptly and unexpectedly
admin
2014-03-22
66
问题
Global climate change, often seen as a process stretching over thousands of years, could in fact occur abruptly and unexpectedly-—quickly pushing up temperatures by as much as 18 degrees Fahrenheit and wreaking havoc (大破坏,浩劫) on human society, scientists warned on Wednesday.
"Climate change is not always smooth. Sometimes it is abrupt," said Richard Alley, a climate expert at Pennsylvania State University and lead author of a new National Academy of Sciences report on the threat of rapid climatic shifts.
"If you have a very large, abrupt change, a lot of people and a lot of ecosystems are going to notice," he said. "The bigger and faster it is, the harder it will be to deal with. "
The new National Academy of Sciences report, released this week, warns that gradual global warming coupled with other human impacts on the environment could "trip the switch" for sudden climate change.
At the American Geophysical Union meeting on Wednesday, Alley and other environmental scientists said the geological evidence indicated that such rapid climate shifts had occurred frequently in the past—moving temperatures drastically in the space of just a few decades.
"This can happen in less than a human generation, and then it will persist for thousands of years," said David Battisti, an atmospheric scientist at the University of Washington.
The most immediate dangers posed by abrupt climate change range are devastating droughts and floods which could seriously affect both water supply and agriculture across vast stretches of the planet.
Longer term impacts could include changes in the basic systems which determine regional global temperatures. Scientists believe that the Gulf Stream, a current (水流) of warm Atlantic water which now keeps much of Northern Europe temperate, could theoretically reverse direction if enough cool fresh water runs into the north Atlantic from melting ice, a change that would quickly impact European weather.
According to the passage, in the long run, abrupt climate change______.
选项
A、could make the Gulf Stream warmer
B、could melt much ice on Earth
C、could submerge the whole European continent
D、could evaporate all fresh water on Earth
答案
B
解析
细节题。根据最后一段,突然气候变化的长远影响有;改变决定地区性全球气温的基本系统;从理论上讲,the Gulf Stream,一股现在维持着北欧大部分气温的大西洋暖流,会由于大量的冰融化的冷水流人大西洋而倒流,这一变化会很快影响欧洲气候。由此可知,B导致地球上冰雪融化是正确答案。
转载请注明原文地址:https://kaotiyun.com/show/WvXO777K
0
在职攻硕英语联考
相关试题推荐
Ironically,theintellectualtoolscurrentlybeingusedbythepoliticalrighttosuchharmfuleffectoriginatedontheacademic
ThejournalScienceisaddinganextraroundofstatisticalcheckstoitspeer-reviewprocess,editor-in-chiefMarciaMcNuttann
ThejournalScienceisaddinganextraroundofstatisticalcheckstoitspeer-reviewprocess,editor-in-chiefMarciaMcNuttann
PublicationofthissurveyhadoriginallybeenintendedtocoincidewiththeannualmeetingsoftheWorldBankandtheInternati
Afour-yearcollegedegree,seenforgenerationsasatickettoabetterlife,is【C1】______enoughtoguaranteeasteadilyrising
Afour-yearcollegedegree,seenforgenerationsasatickettoabetterlife,is【C1】______enoughtoguaranteeasteadilyrising
Afour-yearcollegedegree,seenforgenerationsasatickettoabetterlife,is【C1】______enoughtoguaranteeasteadilyrising
Thereisvirtuallynolimittohowonecanservecommunityinterests,fromsendingafewhoursaweekwithsomecharitableorgan
HerealizedthatMarcelwasavailinghimselfofthisopportunitytomakefriends.
Ontheirvacationtheyenjoyedswimmingatthebeach,walkingthroughthewonderfulstreets,and______inthepicturesque(风景如画的)p
随机试题
还盘
我国在今后将逐步推开(),重大违法违规案件、因盲目决策造成的资源浪费和国有资产流失、单纯追求速度而片面提供优惠政策造成国家和人民群众利益受到重大损害三大领域将成为审计的重点。
根据《工程建设项目勘察设计招标投标办法》规定,依法必须进行勘察设计招标的项目,招标人应当在确定中标人之日起()日内,向有关行政监督部门提交招标投标情况的书面报告。
下列土地中,可以免征城镇土地使用税的有()。
你刚到单位不久,老陈是你在单位的指导老师,一直指导你。有一次你在工作过程中没有征得老陈的同意擅自对业务流程进行了修改,老陈对你的做法不满,说你太冒进。对此,你该怎样与老陈进行沟通?请现场模拟。
投资:赔本:增值
一个城市的基础设施建设,不需要_________的东西,那些急功近利的政绩工程往往经不起时间的_________。填入画横线部分最恰当的一项是:
Equipmentnot______officialsafetystandardshasallbeenremovedfromtheworkshop.
Tomastertheviolintakes10,000hoursofpractice.Putinthattimeand【C1】______willfollow.This,atleast,iswhatmanymus
______(除非你和保险公司签订货物保险合同),youarenotentitledtoarepaymentforthegoodsdamagedindelivery.
最新回复
(
0
)