Amazon.com description: Product Description: For more than two decades, Botkin has been active in the application of ecological science to environmental management. Updated and revised to include the latest research in the field, the new Sixth Edition of Environmental Science continues to present a balanced analytical and interdisciplinary approach to the field. This approach equips readers with a solid scientific background in environmental science, so they can think through environmental issues and make their own decisions. Five central themes are weaved throughout the book: Human Population Growth, Sustainability, A Global Perspective, An Urban World, and Science and Values.