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Scientists measured the impact that people have on the enviroment using a ter
Scientists measured the impact that people have on the enviroment using a ter
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2025-03-01
14
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问题
Scientists measured the impact that people have on the enviroment 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 your 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 and 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 enviromental 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 new finding concerning the footprints of people living in cities and those living in suburbs?
选项
A、The two are not at all comparable.
B、The former are higher than the latter.
C、The latter are higher than the former.
D、The former are similar to the latter.
答案
C
解析
细节题。根据文章第二段第二至四句可知,如果住在城市,离工作、购物和玩耍的地方近的话就更容易产生低碳影响,生活在步行或骑自行车就能到的范围内的人们可以减少人们开车出行时产生的二氧化碳排放量。因此,居住在城市的人们的碳足迹比居住在郊区的人们的小,选项C(后者比前者碳足迹高)正确。选项A(两者没有可比性)与文章意思不符,文中对两者进行了比较。选项B(前者比后者碳足迹高)与文章意思相反。选项D(前者和后者相似)与文章意思不符。故本题选C。
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