From the days of primitive society, humans and animals have used the resources of the earth to support life and to dispose of wastes. In earlier days the disposal of solid waste did not pose a significant problem since the population was small and the amount of land available was large.
ThriftBooks sells millions of used books at the lowest everyday prices. We personally assess every book's quality and offer rare, out-of-print treasures. We deliver the joy of reading in recyclable packaging with free standard shipping on US orders over $20. ThriftBooks.com. Read more. Spend less.