首页
登录
职称英语
If environmental trends in Western nations continue on a positive track, som
If environmental trends in Western nations continue on a positive track, som
游客
2024-06-17
56
管理
问题
If environmental trends in Western nations continue on a positive track, someday children may ask, "Mommy, what was pollution?" But between that day and ours stands the ultimate environmental problem: global warming. Fighting an artificial greenhouse effect is the greatest of environmental challenges, because the cure will not be possible unless almost every nation on Earth participates.
In the last century, global temperatures have risen 1 degree Fahrenheit(华氏温度). Some scientists remain skeptical about projected future warming, but an oft-heard claim, that the idea of global warming is being promo- tad only by fringe fanatics, is not true. In December 2004, Science, one of the world’s leading technical journals, declared in an essay," Without substantial disagreement, scientists find human activities are heating Earth’s surface."
Will global warming cause harm? Some computer models suggest the world might warm by 5 degrees or more during this century, which might be dangerous. Melting polar ice could raise sea levels, while global warming might cause more intense storms and disrupt the weather patterns that bring rain to agricultural regions. Computer models are speculative, of course, but when the farming areas that we all depend upon for food rely on current temperatures, rolling the dice(筛子) with the climate cannot be wise. Yet today the United States has no national legislation regulating greenhouse gases.
What can we do right now? There are methods to reduce global warming. For instance, individuals can make lifestyle changes. Replace the SUV with a regular car; an SUV that gets 14 miles to the gallon emits 100 tons of greenhouse gases over its lifetime. Check out the new hybrid cars, which get 45 mpg or better. Moderate your use of home heating and air conditioning, most of which is powered by fossil fuels, and upgrade appliances to Energy Star models.
On a larger level, there is hope: emissions trading. In 1990, rising levels of acid rain were considered an emergency problem. Congress passed an emissions-trading program, which allowed industrial managers to buy and sell permits to emit a limited amount of pollutants that cause acid rain. The acid-rain trading program created a financial incentive(动机) to invent technology to reduce acid rain; if a factory or power plant cut its emissions below the limit, it could sell the extra credits at a profit. Once there was money to be made by reducing acid rain, human creativity came into play. The results were spectacular.
选项
答案
nations and individuals’ efforts
解析
文章在首段末句提到战胜温室效应的影响需要每一个国家的参与,第四段中也指出:个人可以通过生活方式的转变来减少温室效应的危害。总结可得出答案。
转载请注明原文地址:http://tihaiku.com/zcyy/3638363.html
相关试题推荐
TheEnvironmentalProtectionAgencyhassetlimitsfortheradiationpermitt
Duringthenineteenthcentury,whenlittlewasknownaboutenvironmentalism
[originaltext]M:Goodevening,dearaudience.I’mgladtocontinuethetopicab
[originaltext]M:Goodevening,dearaudience.I’mgladtocontinuethetopicab
[originaltext]M:Goodevening,dearaudience.I’mgladtocontinuethetopicab
[originaltext]M:Goodevening,dearaudience.I’mgladtocontinuethetopicab
WorldEnvironmentDaywasestablishedbytheUnitedNationsGeneralAssembly
WorldEnvironmentDaywasestablishedbytheUnitedNationsGeneralAssembly
WorldEnvironmentDaywasestablishedbytheUnitedNationsGeneralAssembly
WorldEnvironmentDaywasestablishedbytheUnitedNationsGeneralAssembly
随机试题
JohnwritesacheckonhisABCBankaccounttopayforgoodsatPeter.Whoisth
Whatdoesascientistdowhenheorshe"explains"something?Scientificexp
[originaltext]ExitpollsinIsraelshowthatPrimeMinisterArielSharon’su
Linguisticresearchershavegraduallycometounderstandhowandwhysomany
TheHistoryofRhinestonesA)Rhinestoneshaveaglitteringpast.Origin
软件概要设计将软件需求转化为软件设计的()和软件的()。 问题
患儿,8岁,高热、寒战2d入院。查体:体温38.9℃;诉左大腿疼痛难忍,拒绝做任
老年痴呆患者记忆力障碍在初期主要表现为A:错构 B:近事遗忘 C:顺行性遗忘
(共用题干)患者,男,35岁。心脏骤停初期复苏成功。但患者意识不清,心电图示三度
就法律关系的主体而言,债的主体( )。A.双方都是特定的 B.双方都是不特定的
最新回复
(
0
)