Ideasforacoolerworld # Co2 Balance # Kurzfassung # 14.03.2012To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoVideoassistenten03/14/2012March 14, 2012Ideasforacoolerworld # Co2 Balance # Kurzfassung # 14.03.2012https://p.dw.com/p/SEfWAdvertisement