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
What can be said about the report by the National Academy of Sciences? How much has the world temperature gone up in the past 1
What can be said about the report by the National Academy of Sciences? How much has the world temperature gone up in the past 1
admin
2022-07-24
31
问题
What can be said about the report by the National Academy of Sciences?
How much has the world temperature gone up in the past 100 years?
W: Mr. Welch, do you think there is any doubt now that global warming exists?
M: Let me put it this way. A few determined skeptics don’t accept it, but the over-whelming majority of scientists do. The report the National Academy of Sciences issued was very balanced. They noticed some uncertainties, for example, when and where impacts might be felt and to what degree. But the conclusion was that the earth is warming. This change is induced by human activity and it will get worse.
W: Do a few degrees of warming really matter?
M: The earth is warmed by I degree Fahrenheit in the last 100 years, more in some places, like the Arctic, where there has been an increase of 4 to 5 degrees since the 1950s. Polar bears are having a terrible time there and may be extinct by the end of this century. Already, we are seeing changes in Alaska, where roads are buckling in places and some major pipelines no longer fit together. Cold water fish that used to be found off the Alaskan Coast are no longer there.
W: Can a new energy policy help?
M: Energy policy is climate policy since fossil fuels are the main sources of green-house gases, so the question becomes: Where do we get our energy? In the United States, 51% of electricity comes from coal, 20% nuclear, 16. 5% natural gas, 7% hydroelectric, 3% oil and the rest, renewables, geothermal, wind, and solar.
W: How much power can we realistically expect to derive from renewable sources?
M: 10% by 2020 is realistic or with a considered effort, 30% by 2050. Without major breakthroughs, it’s hard to get beyond a third, because most renewables are intermittent. You need better ways of storing the energy.
选项
A、By 1 degree.
B、By 2 degrees.
C、By 4 degrees.
D、By 5 degrees.
答案
A
解析
转载请注明原文地址:https://kaotiyun.com/show/UnPd777K
本试题收录于:
公共英语五级笔试题库公共英语(PETS)分类
0
公共英语五级笔试
公共英语(PETS)
相关试题推荐
Accordingtothepassage,acountry’seconomyisprobablydecidedby______.Whichofthefollowingstatementsaboutsmallbusi
______hotweathermaycauseserioushealthproblemsassociatedwithairpollution?______notonlypeoplebutalsoanimalsandc
Oldpeoplearealwayssayingthattheyoungpeoplearenot(31)theywere.Thesamecommentismade(32)generationtogeneratio
Accordingtothepassage,home-schoolersarethosewho______.Mosthome-schoolers’oppositiontopubliceducationstemsfromt
AnswerquestionsbyreferringtothreebookreviewsonHowtoTravelwithaSalmonandOtherEssaysbyUmbertoEco.Note:Wh
Whichofthefollowingbestexplainswhatmakesdiamondagoodengineeringmaterial?Whichcomparisonistrueaccordingtothe
Note:AnswereachquestionbychoosingA,B,CorDandmarkitonANSWERSHEET1.Somechoicesmayberequiredmorethanonce.
Whatisthemainproblemcausedbytheusualwayofplowing?
Beforeabigexam,asoundnight’ssleepwilldoyoubetterthanporingovertextbooks.That,atleast,isthefolkwisdom.And
Periodicallyinhistory,therecomeperiodsofgreattransitioninwhichworkchangesitsmeaning.Therewasatime,perhaps10,
随机试题
陈兴夫妇在儿子陈华周岁生日时到红星照相馆给儿子拍照纪念,摄影师刘某拍了陈华的底片,后将其卖给个体户张某做挂历用。张某又将该底片卖给兰星香皂厂做婴儿香皂广告之用。在本案中,侵害陈华肖像权的侵权人是()
对工程材料质量,主要控制其相应的()。
财政部制定的《会计核算软件基本功能规范》是对会计软件的最高要求。()
证券公司对客户的授信和融出资金、证券均应由公司总部统一控制和办理,严禁分支机构擅自对外办理相关业务。()
甲、乙合作开发完成了一项技术成果。若甲希望申请专利,而乙不同意,则甲有权单独申请,但将来实施该专利获得的收益应当在甲、乙之间合理分配。()
福安公司为一家食品生产企业。2006年,福安公司拟扩大生产经营范围,投资于饮料行业。福安公司管理层在对当时国内饮料行业进行深入调研后发现:已有一批大中型饮料企业从事各类知名品牌的饮用水的生产和销售。有关情况如下:(1)水清公司生产饮用水的历史最长,其生产
Disagreementsamongeconomistsarelegendary,butnotontheissueoffreetrade.Arecentsurveyofprominenteconomistsbothc
下列各句中没有语病且句意明确的一句是:
新文化运动最重要的成果是()
A、Heishereonaresearchmission.B、Heishereformeetingfriends.C、Heishereforsightseeing.D、Heishereonabusinesst
最新回复
(
0
)