首页
登录
职称英语
Year after year, the world’s nations gather to find ways to reduce carbon di
Year after year, the world’s nations gather to find ways to reduce carbon di
游客
2024-02-19
3
管理
问题
Year after year, the world’s nations gather to find ways to reduce carbon dioxide, the main greenhouse gas, with little meaningful progress. Frustrated by this slow pace, the United States and five other countries announced this week a modest but potentially game-changing initiative to cut three other pollutants that also contribute significantly to climate change.
The three pollutants—methane (甲烷), black carbon and hydroflttorocarbons (氢氟碳)—together account for about 30 percent to 40 percent of the rise in global temperatures. Unlike carbon dioxide, they do not remain in the atmosphere for a long time, but, while they are there, they drive temperatures upward.
Mainstream scientists believe that to avoid disastrous increases in the sea levels and widespread drought, the rise in global temperatures by 2050 should not exceed 2 degrees Celsius above preindustrial levels. Though cuts in carbon dioxide will also be necessary to reach that goal, curbing these three pollutants will help enormously.
Officials hope further that by tackling these pollutants they can achieve relatively quick and measurable reductions in emissions without waiting for politicians to act or the United Nations process to produce a global agreement on carbon dioxide.
The plan’s founding members are the United States, Canada, Sweden, Mexico, Ghana and Bangladesh. Washington and Ottawa will jointly underwrite a $ 15 million start-up fund. Clearly, the program must be scaled up over time, with many more countries participating. In the short term, officials say their purpose is to educate and test inexpensive and technologically accessible ways of capturing these gases.
Soot, a huge health hazard, can be reduced by installing filters on diesel engines, replacing traditional cook stoves with more efficient models and banning the open burning of agricultural waste. Methane can be captured from oil and gas wells, leaky pipelines, municipal (城市的) landfills and wastewater treatment plants.
Significantly reducing hydrofluorocarbons, or HFCs, could be harder. These compounds, widely used in air-conditioners and originally developed to replace the refrigerants that were damaging the ozone layer, turned out to be a disastrous greenhouse gas. Efforts to find less-harmful substitutes have met resistance from countries like India, where most HFCs are manufactured.
Governments everywhere should obviously be pushing to reduce carbon dioxide, the most dangerous greenhouse gas. In the meantime, opening an important second front in the climate war will demonstrate that progress is possible. [br] Why did the United States and five other countries announce to cut three other pollutants this week?
选项
A、Because they are influenced badly by the three pollutants.
B、Because the three pollutants generate climate change mainly.
C、Because climate change has been worse and worse worldwide.
D、Because the control on carbon dioxide is inadequate and slow.
答案
D
解析
事实细节题。定位句中的过去分词短语作原因状语。由定位句可知,因为对这一缓慢过程失望,美国和另外五个国家宣布了另一项法案,故D)“因为对二氧化碳的控制不足且缓慢”正确。A)“因为它们受到了三种污染物的严重影响”、B)“因为主要是这三种污染物造成气候变化”和C)“因为全球气候变化越来越严重”不符合原文,故排除。
转载请注明原文地址:https://tihaiku.com/zcyy/3465794.html
相关试题推荐
TypesofExaminationsAnexaminationfallsintoone
TypesofExaminationsAnexaminationfallsintoone
TypesofExaminationsAnexaminationfallsintoone
TypesofExaminationsAnexaminationfallsintoone
TypesofExaminationsAnexaminationfallsintoone
WithfifteenyearsBritainandothernationsshouldbewellonwiththebuil
WithfifteenyearsBritainandothernationsshouldbewellonwiththebuil
WithfifteenyearsBritainandothernationsshouldbewellonwiththebuil
WithfifteenyearsBritainandothernationsshouldbewellonwiththebuil
WithfifteenyearsBritainandothernationsshouldbewellonwiththebuil
随机试题
典型定额法包括()。A.写实记录法 B.工作日写实法 C.比例数式法 D
甲房地产开发企业将自行开发的楼盘80%对外销售,剩余20%对外出租,另将8年前购
抢救口服有机磷农药中毒病人洗胃时最常用的洗胃液是A.0.9%氯化钠注射液、温开水
患者,女,20岁,未婚。近4个月月经提前8?10天,量多、色淡、质稀,神疲肢倦,
某学校安排音乐教师兼职法制教育。该学校的行为( )。A.正确,节约了教学资源
根据《工程建设项目施工招标投标办法》,下列关于投标人参加工程建设项目投标应当具备
不属于医疗资源管理和分配道德准则的是A.防治结合,预防为主 B.医患利益兼顾,
对于高海拔地区电器的选用,下面各项说法中正确的是()。 A.在高原地区,由于气
当应急电源装置(EPS)用作应急照明系统备用电源时,关于应急电源装置(EPS)的
局麻药引起局麻作用的电生理学机制是A.促进Na内流 B.阻止Na内流 C.促
最新回复
(
0
)