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
12
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] What is the writer’s attitude to the climate in the future?
选项
A、Disappointed.
B、Pessimistic.
C、Concerned.
D、Optimistic.
答案
D
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2873382.html
相关试题推荐
[originaltext]Lastweekwediscussedtheproblemofrisingprices,or,int
[originaltext]Lastweekwediscussedtheproblemofrisingprices,or,int
[originaltext]Lastweekwediscussedtheproblemofrisingprices,or,int
Noonewhoreadsthenewspaperscandoubttheseriousnessofcrimeinthisc
Noonewhoreadsthenewspaperscandoubttheseriousnessofcrimeinthisc
Noonewhoreadsthenewspaperscandoubttheseriousnessofcrimeinthisc
Noonewhoreadsthenewspaperscandoubttheseriousnessofcrimeinthisc
Noonewhoreadsthenewspaperscandoubttheseriousnessofcrimeinthisc
Noonewhoreadsthenewspaperscandoubttheseriousnessofcrimeinthisc
Noonewhoreadsthenewspaperscandoubttheseriousnessofcrimeinthisc
随机试题
TakingVacationsExperiencesan82PercentIncreaseinJobPerformanceA
[originaltext]Switzerlandisalandwell-knownforitsbeautifullandscape
Themodernageisanageofelectricity.Peoplearesousedtoelectriclights,
1999年1月,40多个部委(局、办)的信息主管部分共同倡议发起了()其目标是
风险管理根据风险评估的结果,从__()__三个层面财务相应的安全控制措施。A.
国家电网公司变电检测通用管理规定中规定()负责本单位发现的各类变电设备试验检
某甲赌钱大输,便将乙托其保管的录像机拿到集市上出卖,丙以合理价格买得,乙在丙处发
心理学家用三个经典实验研究了人类的从众和服从行为,阿希研究中的实验任务非常清晰,
A.硝酸酯类 B.钙通道拮抗剂 C.血管紧张素转化酶抑制剂 D.β受体阻滞
临床上判断脱水性质有困难时先按哪种脱水处理A、低渗 B、高渗 C、等张 D
最新回复
(
0
)