The river Emscher in Germany's Ruhr Region has undergone an astonishing transformation. Today, black coal cleans the water - and could become a global game changer. #Coal #Water #DWEnvironment For more news go to: http://www.dw.com/en/ Follow DW on social media: ►Instagram: https://www.instagram.com/dwnews ►TikTok: https://www.tiktok.com/@dwnews ►Facebook: https://www.facebook.com/deutschewellenews/ ►Twitter: https://twitter.com/dwnews Für Videos in deutscher Sprache besuchen Sie: https://www.

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