00663pamaa2200217 4500 0000014432 20060602090000.0 0471157821 363.7 BOT GE105 BOT 1998 BOTKIN Environmental science : earth as a living planet Daniel B. Botkin and Edward A. Keller. 2nd ed. New York: John Wiley, 1998. xxx, 679p.: col.ill.; 29cm. Encironmental sciences -- Case studies Biological diversity Human ecology Environmental sciences Sustainable development Keller, Edward A.