The following video from Sina won the 2006 Chinese DV Contest for environment protection. It tells us:
“Two-thirds of the cities in China are filled with trash. According to reliable sources, there are about 150,000,000 tons of trash produced in cities every year. Most of the trash has been piled outdoors, which not only harms the image of the cities, but also pollutes the air, water and soil, which also affects our lives. It also becomes a threat to human health. The trash—abandoned poison—is one crucial obstacle for urban development in China.”