首页
登录
职称英语
Scientists measured the impact that people have on the environment using a t
Scientists measured the impact that people have on the environment using a t
游客
2024-01-15
62
管理
问题
Scientists measured the impact that people have on the environment using a term called carbon " footprint." That footprint reflects the amount of carbon dioxide that is emitted (排放)into the atmosphere as a result of someone’ s daily activities. Carbon footprints tend to be low for city dwellers(城镇居民). Living in a suburb outside a city, however, can turn that footprint into a bootprint.
Energy researchers Christopher Jones and Daniel Kammen calculated carbon footprints for people in every zip code across the United States. People living in city centers had small footprints, the researchers found. "It is much easier to have a low carbon impact if your home is close to where you work, shop and play," explains Jones. Living within walking or biking distance cuts back on the amount of carbon dioxide associated with moving people by cars. And cities with extensive bus and subway networks allow people to travel great distances while keeping releases of climate-altering greenhouse gases low.
Not everyone can afford to live in the city, however. And not everyone wants to. Rings of suburbs have popped up around major cities across the world. Suburbs offer more space, allowing people to build larger homes. Suburbs may offer better schools for a family’ s kids. But those homes are typically well beyond walking distance from where their owners work, play or learn. So people who live in suburbs often drive long distances.
The new findings are an important contribution to climate research, says Matthew Kahn, an environmental economist at the University of California, who was not involved with the study. Kahn would like to see the analysis applied to other parts of the world—Europe, India and China, for instance. That would give scientists a better feel for how culture might mix with location to influence our carbon footprints. [br] What is the key factor mentioned to explain the new findings?
选项
A、Spending habits.
B、Distance travelled by cars.
C、Size of families.
D、Attitude towards energy saving.
答案
B
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3366050.html
相关试题推荐
Increasingly,overthepasttenyears,people—especiallyyoungpeople—haveb
Increasingly,overthepasttenyears,people—especiallyyoungpeople—haveb
Increasingly,overthepasttenyears,people—especiallyyoungpeople—haveb
Increasingly,overthepasttenyears,people—especiallyyoungpeople—haveb
Peopleliveingroups,whichwecallsocieties,andsocialrelationsarethe
Peopleliveingroups,whichwecallsocieties,andsocialrelationsarethe
Peopleliveingroups,whichwecallsocieties,andsocialrelationsarethe
()manypeopleprefercoffee,hedrinksteaasusual.A、WhileB、BesidesofC、Beca
Doyouthinktheyhave()foodforallthesepeoplehere?A、subsequentB、beneficia
The()oftheplayissogreatthatmanypeoplewanttoseeit.A、attentionB、attr
随机试题
[originaltext]Thefirststeptowardtheinventionoftelevisionwastakenin
不善于表露情感、表现行为,与人交往显得沉静而孤僻,这种性格类型是()。A.情绪
根据所示梁的弯矩图和剪力图,判断为下列何种外力产生的?( )
徒手抗阻训练训练前准备工作不包括A.告诉患者不要憋气 B.评定患者关节活动度和
湿度有3种基本形式,即水汽压、相对湿度和()。A.绝对湿度 B.比湿
材料采购时,对运输组织的要求包括( )。A.尽量采取措施改善原有交通条件 B
妊娠早期,恶心呕吐,呕吐食物或清涎,食入即吐,不思饮食,头晕体倦,舌淡苔白,脉缓
某筏板基础,平面尺寸为12m×20m,其地质资料如图所示,地下水位在地面处。相应
行政诉讼受案范围是行政诉讼制度中的重要问题。下列哪些属于行政诉讼受案范围:A.王
纵缝分块,浇块高度一般在( )m以内。A.1 B.2 C.3 D.4
最新回复
(
0
)