The most air pollution is caused by transport vehicles like cars. Most of the time people are driving alone to work or to buy groceries. This causes traffics jams, air pollution and noise. The on-road vehicles are responsible for over a third of the global carbon monoxide and nitrogen oxides amounts in our atmosphere. The health threads are higher for people living in crowded cities and the CO2-Emission can reduce the lifetime by 2-3 years.
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Why you should ride a bike
