Dutch artist Daan Roosegaarde has come up with an innovative plan to tackle Beijing’s air pollution problem – and in doing so, turn a health hazard into a thing of beauty.

After a pilot in Rotterdam, the Smog Free Project is coming to China. The project consists of two parts. First, a 7m tall tower sucks up polluted air, and cleans it at a nano-level. Second, the carbon from smog particles is turned into diamonds. Yes, diamonds.

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