首页
登录
职称英语
Global warming is the most serious problem humanity has ever faced. There’s
Global warming is the most serious problem humanity has ever faced. There’s
游客
2023-07-27
36
管理
问题
Global warming is the most serious problem humanity has ever faced. There’s more hype (宣传) on this environmental issue than any other. In the late 1970s computer models predicted that because of the heat-trapping buildup of carbon dioxide in the atmosphere, the earth would warm up by several degrees over the next century. A lot of bad weather gets linked to global warming in the media, which regularly predict that more and fiercer hurricanes, longer droughts and more severe rainstorms will result.
What has actually been going on? One computer model says the earth’s temperature should have already increased by an easily detectable 0.3 to 0.4 degrees Celsius since 1979. Some satellite data, however, show that the earth’s temperature has actually cooled slightly over the last 18 years.
And despite seasonal variations, the frequency of intense Atlantic hurricanes and their maximum wind speed have not increased over the past half-century.
If climate models turn out to be correct, it may be prudent to limit carbon-dioxide emissions in the future. But many experts feel there is no need to rush into drastic action. "We have a decade or so to collect data and refine our models before we might have to act," says Jerry North, professor of meteorology at Texas A&M. There is also time for scientists to develop carbon-intensive energy technologies, which we can switch to later at a lower cost.
"Even though it will disappoint many of you, the evidence is that you have a very bright future." This is how I finished my presentation at American University, eliciting a few chuckles from the audience.
On a more serious note, I asked the students to consider a radical proposition: Economic growth and technological progress are not enemies of the environment but, are perhaps its best friends, since they allow us to reduce humanity’s footprint on the natural world. High-tech agriculture boosts farm productivity, which means a cheaper good supply and more land spared for nature. Better sewage treatment means that our rivers and streams can run freer of pollutants. [br] Why is it possible that economic growth and technological progress are environmentally friendly?
选项
A、Because they can keep people away from the natural world.
B、Because they may help preserve more natural land.
C、Because they can increase productivity.
D、Because they may not produce pollutants.
答案
B
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2873383.html
相关试题推荐
Please__________(将问题提出来)atthenextmeeting.bringtheproblemforward词组:bring
Yourcare-freenatureoften____________(遇到钱的问题).comesupagainsttheproblemo
[originaltext]Lastweekwediscussedtheproblemofrisingprices,or,int
[originaltext]Lastweekwediscussedtheproblemofrisingprices,or,int
[originaltext]Lastweekwediscussedtheproblemofrisingprices,or,int
Noonewhoreadsthenewspaperscandoubttheseriousnessofcrimeinthisc
Noonewhoreadsthenewspaperscandoubttheseriousnessofcrimeinthisc
Noonewhoreadsthenewspaperscandoubttheseriousnessofcrimeinthisc
Noonewhoreadsthenewspaperscandoubttheseriousnessofcrimeinthisc
Noonewhoreadsthenewspaperscandoubttheseriousnessofcrimeinthisc
随机试题
茶花(camellia)的自然花期在12月至翌年4月,以红色系为主,另有黄色系和白色系等,花色艳丽。本届花展充分展示了茶花的品种资源和科研水平,是近三年
IfoundoutthatIama(n)______learner:Ilearnbestwhenprofessorsusethebl
HarvardPresident’sAddress:aDifferentLife1.Students’wonderWhat【T1】__
5个月男婴,反复呼吸道感染和鹅口疮3个月,患肺炎2次。体检:发育较差,气促,唇周
()是指基金管理人投资业务人员违反相关法律法规和公司内部规章带来的处罚和损
Thechangeinthatvillagewasmiraculou
采集标本的正确方法是A.若患者正在输液,为了避免再次穿刺可直接从输液针头抽血
某客户开仓卖出大豆期货合约30手,成交价格为3320元/吨,当天平仓10手合约,
下列车辆,免征车辆购置税的是()。A.各种汽车 B.挂车 C.排气量200
建筑工程一切险的保险期限的开始时间为()。A.自工地动工或材料、设备运抵工地时起
最新回复
(
0
)