Tomorrow Today - Paving stones, meadows, land grab, cat lovers | All media content | DW | 09.03.2018
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Tomorrow Today

Tomorrow Today - Paving stones, meadows, land grab, cat lovers

Banning diesel vehicles would be one way for cities to lower levels of nitrogen dioxide pollution. Another idea is using air-purifying paving stones on streets. They're made of a material that eliminates the harmful pollutant.

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