首页
登录
职称英语
The world’s leading climate scientists have set out in detail for the first
The world’s leading climate scientists have set out in detail for the first
游客
2024-09-23
23
管理
问题
The world’s leading climate scientists have set out in detail for the first time how much more carbon dioxide humans can pour into the atmosphere without triggering dangerous levels of climate change—and concluded that more than half of mat global allowance has been used up.
If people continue to emit greenhouse gases at current rates, the accumulation of carbon in the atmosphere could mean that within as little as two to three decades the world will face nearly inevitable warming of more than 2℃, resulting in rising sea levels, heatwaves, droughts and more extreme weather.
This calculation of the world’s "carbon budget" was one of the most striking findings of the Intergovernmental Panel on Climate Change(IPCC), the expert panel of global scientists who on Friday produced the most comprehensive assessment yet of our knowledge of climate change at the end of their four-day meeting in Stockholm.
The 2,000-plus page report, written by 209 lead authors, also found it was "unequivocal" that global warming was happening as a result of human actions, and that without "substantial and sustained" reductions in greenhouse gas emissions we will breach the symbolic threshold of2℃ of warming, which governments around the world have pledged not to do.
John Kerry, the US secretary of state, said in a statement: "This is yet another wakeup call: those who deny me science or choose excuses over action are playing with fire. "
" Once again, the science grows clearer, the case grows more compelling, and the costs of inaction grow beyond anything that anyone with conscience or commonsense should be willing to even contemplate," he added.
The IPCC also rebuffed me argument made by climate sceptics that a "pause" for the last 10 -15 years in the upward climb of global temperatures was evidence of flaws in their computer models. In the summary for policymakers, published on Friday morning after days of deliberations in the Swedish capital, me scientists said: " Each of the last three decades has been successively warmer at me Earth’s surface man any preceding decade since 1850. In the northern hemisphere, 1983 -2012 was likely the warmest 30-year period of the last 1,400 years. "
Thomas Stocker, co-chair of the report working group, said measuring recent years in comparison to 1998, an exceptionally hot year, was misleading and that temperature trends could only be observed over longer periods, of about 30 years.
Natural variability was cited as one of the reasons for warming being less pronounced in the last 15 years, and the role of the oceans in absorbing heat, which is still poorly understood.
"There are not sufficient observations of the uptake of heat, particularly into the deep ocean, that will be one of the possible mechanisms that would explain this warming hiatus(间断)," said Stocker. [br] All of the following resulted in a "pause" for the last 15 years in the upward climb of global temperatures EXCEPT______.
选项
A、the flaws in climate scientists’ computer models
B、the misleading comparison between 1998 and recent years
C、the short-term observation of temperature trends
D、the role of the oceans in absorbing heat
答案
A
解析
细节题。第七段首句指出,怀疑论者认为近10至15年来全球气温升高“停滞”,证明其电脑模型存在缺陷,而IPCC否认了这一观点,[A]不能构成原因,故排除。
转载请注明原文地址:https://tihaiku.com/zcyy/3770335.html
相关试题推荐
Therehavealwaysbeenreputableandcompetentscientistswhohavedisagreedwit
Scientistshaveknownhowtoharnessthelimitlesspowerofthesun.Theunderli
Theworld’sleadingclimatescientistshavesetoutindetailforthefirst
Theworld’sleadingclimatescientistshavesetoutindetailforthefirst
Theworld’sleadingclimatescientistshavesetoutindetailforthefirst
Economy,oneoftheprinciplesofsuccessinthedetailsofhousekeeping,co
Economy,oneoftheprinciplesofsuccessinthedetailsofhousekeeping,co
Economy,oneoftheprinciplesofsuccessinthedetailsofhousekeeping,co
Economy,oneoftheprinciplesofsuccessinthedetailsofhousekeeping,co
Economy,oneoftheprinciplesofsuccessinthedetailsofhousekeeping,co
随机试题
RuthAnnandRobertLipicknewtheirchildrencouldmakemistakesthatcould
TheInternetisaninternationalcollectionofcomputernetworksthatallun
下列情况中,应写退稿信的有()。A.稿件质量达不到出版要求 B.稿件基本可用
以下说法不正确的是()。A.HTTP是一种请求/响应式的协议 B.HTTP
2005年1月1日,一家独资企业的资产总额为210000美元,债务为120000
某区1000名学生高考成绩的平均分数为560分,标准差为6分,其中1名考生的分数
血清ALP活性极度上升,可达正常上限50倍,多见于A、变形性骨炎B、骨肿瘤C
患者,女,57岁,风心病二尖瓣狭窄、全心衰竭5年,常于冬季好发心力衰竭,近3年服
国外某研究机构针对网上购物行为进行调查,随机抽取2万名网络购物消费者,对其进行“
基金管理人将基金财产与其他资产混合投资属于违规行为。()
最新回复
(
0
)