到2050年，将有近80%的地球人口生活在城市中心地区。

By the year 2050, nearly 80% of the Earth's population will live in urban centers.

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它不会在地球上散播神经毒性汞；它不会用烟尘和硫堵塞城市空气和呼吸者的肺。

It does not distribute neurotoxic mercury around the planet; it does not clog city air and the lungs of those who breathe it with soot and sulfur.

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临汾是地球上污染最严重的城市之一。

Linfen is one of the most polluted cities on Earth.

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