in this picture a man rudely opens a garbage can and violently throws all kinds of waste into it. however, the box is not an ordinary trash can, but is, as a matter of fact, the earth. it is where survive, breed, and prosper. but as the drawing indicates, earth does not receive an equal repayment. quite the contrary, one of the biggest "gifts" humans return to earth is an unbelievable amount of trash.the picture purposefully points out a kind of pollution that arouses little public attention, that is, garbage. the past century has witnessed an unprecedented increase in garbage output, most of it technological products that are difficult to be decomposed through natural processes, such as plastics and glass. furthermore, a recent report released that several major chinese cities are already surrounded by circles of trash in the suburban areas, polluting air, water, and earth.

　　hence, the issue of waste pollution needs to be addressed as one of the priorities that demand social efforts. only through a holistic system of trash disposal can this problem be fully solved. moreover, we should advocate a more frugal lifestyle so as to reduce the growing scale of waste pollution.