As landfills are closed and new and stricter legislation enacted, the problems of waste and pollution grow ever larger. Re-engineering production lines to reduce the source of unusable by-products is one answer, and developing new technologies to make use of these materials another. Recycling provides an immediate solution, and it is one that is becoming more and more popular in a variety of industries ranging from styrene to steel to newsprint. Like the other titles in the "Encyclopedia of Environmental Control Technology" series, this volume draws on contributors from around the world who are engaged in finding ways to solve the problems of waste and devising new strategies for recycling.