TY - BOOK AU - Steffen, A. TI - World changing: A users guide for the 21st century SN - 9780810970854 AV - HC 79 .E5W676 2006 PY - 2008/// CY - Newyork PB - Inc. Abrams KW - Environmentalism KW - Sustainable development KW - Green movement N1 - Includes bibliographical references and index ER -