首页
登录
职称英语
Global climate change, often seen as a process stretching over thousands of
Global climate change, often seen as a process stretching over thousands of
游客
2025-03-19
60
管理
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. [br] In this passage, scientists warn of______.
选项
A、sudden world climate change
B、gradual global warming
C、long-term influence of climate shift
D、political havoc on human society
答案
A
解析
细节题。根据文章开头,科学家警告,全球气候可能发生突然、出乎意料的变化,推动气温大幅度上升,为人类社会带来浩劫。因此A为正确答案。
转载请注明原文地址:https://tihaiku.com/zcyy/4003941.html
相关试题推荐
Thesecollectivechangesinthecontent,character,andexecutionofChina’s
Despitemuchloosetalkaboutthenewglobaleconomy,today’sinternational
Despitemuchloosetalkaboutthenewglobaleconomy,today’sinternational
SpeakerA:Mr.Carson,Dr.Brownwillhavetochangeyourappointmenttotomorro
Ourresearchhasfocusedonadrugwhichisso______astobeabletochangebrai
Intheworldofclimatechange,itisintheEarth’scoldregionswheretren
Intheworldofclimatechange,itisintheEarth’scoldregionswheretren
AttheKyotoconferenceonglobalwarminginDecember1997,itbecameabunda
AttheKyotoconferenceonglobalwarminginDecember1997,itbecameabunda
AttheKyotoconferenceonglobalwarminginDecember1997,itbecameabunda
随机试题
[originaltext]M:Hi,Daphne,whatareyoubusywithtoday?W:Justsomeassignm
休克的特殊监测不包括()。A.中心静脉压CVP B.肺毛细血管楔压PCWP
某高层建筑消火栓给水系统拟采用下列防超压措施,哪几项正确?()A.提高管道和
隧道周边位移量测,确定初读数时要求连续量测3次的误差()。A:≤0.10mm
患者25岁,已婚。停经80天,阴道少量出血10天,无腹痛,妇科检查子宫增大如孕4
以下情形中,不构成主板上市公司发行可转换公司债券障碍的有()。[2015年5月
教师绩效考核应当遵循如下原则()。A.客观公正 B.分类考核 C.注
(2021年上半年真题)同学们正在教室里聚精会神地听老师讲课,突然从教室外飞进来
简述现代企业人力资源管理各个历史发展阶段的特点。
教育法律关系是一种()关系。 A.权利义务B.诚信C.合同D.社会契约
最新回复
(
0
)