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17-01-2019
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How much have the pollutants in the Yangtze river increased in the last 50 years?

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Аноним Аноним

17-01-2019

By over 56% over 50 years.

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Wemaybewrong Wemaybewrong

17-01-2019

I found about a 73% increase in the last 50 but I may be wrong

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