The Miyun Reservoir Watershed, located between Hebei Province and Beijing Municipality, supplies drinking water to over 11 million people in Beijing Johnson Zhang
Sludge Treatment Plant, Yokohama City City of Yokohama, http://www.city.yokohama.lg.jp/kankyo/gesui/centerinfo/12src/
Especies de conservación SILAPE Envigado Secretaría de Medio Ambiente y Desarrollo Agropecuario Envigado
Flooding area and recent contention works on the slope in the community Padre Ugo in Salvador/Brazil Wolfram Lange