TY - BOOK AU - Mackenzie,Fred T. TI - Our changing planet: Introduction to earth system science and global environmental change SN - 9780321667724 U1 - 333.7ENG PY - 2011/// CY - Boston PB - Prentice Hall KW - Environmental sciences KW - Human ecology KW - Nature KW - Global environmental change N1 - Includes bibliographical references and index ER -