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Schadstoffarme Straßen - Neue Gehwegplatten für reinere Luft

Difficulty: difficulty - Intermediate Intermediate


We know that cities use machines to clean the streets, but did you know that specially-designed sidewalks can clean the air we breathe? Learn about the new way that the city of Frankfurt is working to improve the environment in this fascinating report from Rhein-Main TV. Umweltverschmutzung? Nein danke!