There is money in filth. There will be more of it in China. The country’s air pollution problem is well-known and the state of its soil, while less visible, is equally dire.
Last week the government announced plans to improve the quality of its arable land within five years. A 2014 survey estimated that one-fifth of arable land was contaminated by heavy industry.
The plan aims to restore 90 per cent of that to safely usable levels by 2020. Officials estimate that the clean-up might cost more than $1tn.
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