首页
登录
职称英语
Coal is expected to continue to account for almost 27 percent of the world’
Coal is expected to continue to account for almost 27 percent of the world’
游客
2024-10-15
2
管理
问题
Coal is expected to continue to account for almost 27 percent of the world’s energy needs. With growing international awareness of pressures on the environment and the need to achieve sustainable development of energy resources, a wide range of pollution control practices is in place at most modem mines. In addition, major research and development programmers are being devoted to lifting efficiencies and reducing emissions of greenhouse gases during coal consumption. Such measures are helping coal to maintain its status as a major supplier of the world’s energy needs.
The coal industry has been targeted by its critics as a significant contributor to the greenhouse effect. However, the greenhouse effect is a natural phenomenon involving the increase in global surface temperature due to the presence of greenhouse gases—water vapor, carbon dioxide, methane and nitrous oxide--in the atmosphere. Without the greenhouse effect, the earth’s average surface temperature would be 33-35℃ lower, or -15℃. Life on earth, as we know it today, would not be possible.
There is concern that this natural phenomenon is being altered by a greater build-up of gases from human activity, perhaps giving rise to additional warming and changes in the earth’ s climate. This additional build-up and its forecast outcome has been called the enhanced greenhouse effect. Considerable uncertainty exists, however, about the enhanced greenhouse effect, particularly in relation to the extent and timing of any future increases in global temperature.
Greenhouse gases arise from a wide range of sources and their increasing concentration is largely related to the compound effects of increased population, improved living standards and changes in lifestyle. From a current base of 5 billion, the United Nations predicts that the global population may stabilize in the twenty-first century between 8 and 14 billion, with more than 90 percent of the projected increase taking place in the
world’s developing nations. The associated activities to support that growth, particularly to produce the required energy and food, will cause further increases in greenhouse gas emissions. The challenge, therefore, is to attain a sustainable balance between population, economic growth and the environment.
The major greenhouse gas emissions from human activities are carbon dioxide (CO2), methane and njtrous oxide. Chlorofiuorocarbons (CFCs) are the only major contributor to the greenhouse effect that does not occur naturally, coming from such sources as refrigeration, plastics and manufacture. Coal’s total contribution to greenhouse gas emissions is thought to be about 18 percent, with about half of this coming from electricity generation. [br] Effects have been made to guarantee the status of coal industry except ______.
选项
A、analyzing coal’s relation to the greenhouse effect
B、controlling pollution at modem mines
C、cutting down emissions of greenhouse gases
D、maintaining efficiencies during coal consumption
答案
D
解析
细节理解题。对应原文第一段:In addition, najor research and development programmes are being devoted to lilting effidencies and reducing emissions of greenhouse gases during coal consumption.答案为D。 lift vt.增加,提高; emission n.排放物
转载请注明原文地址:https://tihaiku.com/zcyy/3802715.html
相关试题推荐
Coalisexpectedtocontinuetoaccountforalmost27percentoftheworld’
InformationtechnologyisexpectedtohaveimpactonallthefollowingEXCEPT[b
InformationtechnologyisexpectedtohaveimpactonallthefollowingEXCEPT[b
AccountabilityforEducationFailsIhaveanunclewhow
AccountabilityforEducationFailsIhaveanunclewhow
AccountabilityforEducationFailsIhaveanunclewhow
AccountabilityforEducationFailsIhaveanunclewhow
Wehadn’texpectedapowercutsowewereastonishedwhenthewholehousewas___
Theresultisnotthesame______theyhadexpected,______wasratherdisappointin
NowadaysInternetenablesustoknowthingshappenalmostattheexactmoment__
随机试题
TheWord"here"(Para,1,Line3)refersto______.[br]Whichofthefollowing
WhatmadeAnnsuchafinecounselorwasher________,herabilitytoputherself
______,locatedinMichigan,isknownas"MotorCity".A、ChicagoB、DetroitC、Hou
HowtoReinventCollegeRankings:ShowtheDataStudentsNeedMostA)All
患者,女,75岁,近3年双下肢逐渐出现沉重感和间歇性跛行,查体:体胖,血脂高,心
计算盈亏平衡点时,要注意( )在增值税计算口径上的一致性。A.销售单价 B.
患者臀部肌内注射进针后如抽吸有回血,处理措施是A:将针头刺得更深一点后推注药物
计件工资是按照劳动者在单位时间内完成的合格产品的数量来计算工资报酬的,包括(
(2017年真题)生产企业季节性资产增加的主要融资渠道为()。A.季节性负
期货公司及其从业人员从事期货投资咨询业务,应当遵守有关法律、法规、规章和本办法规
最新回复
(
0
)