Plastic, especially in the form of nonbiodegradable bags, has become a target of the environmentally conscious. From San Francisco to South Africa, cities have outlawed, taxed or otherwise restricted plastic bags, even here in the developing world where immediate needs, like jobs, often outweigh nobler aims. Just last month New Delhi passed a preliminary ban imposing a five-year jail term or a 100,000-rupee fine, about $2,055, on anyone caught carrying or handing out plastic bags. [ABSTRACT FROM PUBLISHER]