Scrap metal - Recycling
Environmental protection by youth
Healthy environment
Earth Summit
Garbage - Bone - Shoe - Can - Recycling
Recycling
ECO style - Europa
European Year of the Environment
Schuco - Green Technology - Blue Planet
Clean city for a beautiful Krefeld
Disposall
Draining problems - Oil tanks - Sewer connection - ...
Paper recycling
Street sweeper
Recycling - Waste in the bin
Chemical waste - Hand it in
