Air pollutions is a big issue, it is a big problem. This video shows many pieces of information about this problem, such as statistics, causes, effects and solutions.
Many curiosities are about the countries that have a big gas emission, like the USA, which is responsible for 30.3% of the world's gas emissions. Or that 33% of Chinese people live in such polluted cities, that the air they breath is equivalent to smoking 2 packs of cigarretes a day.
Check it out!
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