Harvesting rainwater

Water shortages plague most Chinese

cities; even so, rainwater is inadequately harvested or not at all. Rainwater goes down the drain serving no useful purpose. Recent rainstorms that affected a number of cities in South China have sparked debates on rainwater conservation efforts in urban areas.

One can take a leaf out of the German pavilion at the ongoing Shanghai Expo, which is showcasing Berlin's rainwater harvesting system which not only makes good use of rainwater but also keeps the city's waterways uncontaminated.