A car can be driven as far on a gallon of the new plant-based fuel as a car can be driven on a gallon of gasoline, but a gallon of the plant-based fuel both costs less and results in less pollution.

汽车使用一加仑这种新植物燃料或一加仑汽油可以开得一样远；但是一加仑植物燃料不但花费少，并且造成的污染更少。

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My topic today is “The Car and Air Pollution”.

我今天的话题是“轿车与空气污染”。

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Car traffic, industries and agriculture are the main sources of pollution of London and areas nearby.

汽车，工业和农业是伦敦及其城郊的主要污染源。

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And the dymaxion car -- which could have provided safe, pollution-free transportation using little gasoline -- was never produced.

VOA: special.2010.05.30

Thus, because a driver's private motoring costs do not reflect the costs he imposes on others in the form of pollution and congestion, he uses the car more than is socially desirable.

ECONOMIST: When children should be screened and not heard

She is concerned that the increase in the number of car journeys and flights would bring excess noise and pollution and affect property prices on the marsh.

BBC: NEWS | UK | England | Kent | Airport expansion plan criticised

And while the current Colosseum project aims to improve visitor services in addition to cleaning and restoring the amphitheater, Quaedvlieg-Mihailovic believes that its underlying problems also need to be addressed -- the main one being the car traffic that surrounds the site and causes the exterior to be tarnished with pollution.

CNN: STORY HIGHLIGHTS