Some countries are known for having dangerously high pollution levels, poor sanitation, and large amounts of unmanaged waste. These problems are usually caused by overpopulation, industrial activity, ...
Most of the used cars shipped to Nigeria and the rest of the continent have been stripped of pollution controls. The United Nations has warned that the trade in secondhand vehicles, which are ...
One widespread belief is that the worst air is outdoors, and that by staying inside, individuals can avoid its harms.
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