The quadrupling of the world population in the 20th century has over-burdened the environment and accelerated the depletion of natural resources, whether renewable or not. The effort of the largest... This description may be from another edition of this product.
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 $15.
ThriftBooks.com. Read more. Spend less.