Copyright © 2009 IAASTD. All rights reserved. Permission to reproduce and disseminate portions of the work for no cost will be granted free of charge by Island Press upon request: Island Press, 1718 Connecticut Avenue, NW, Suite 300, Washington, DC 20009.Island Press is a trademark of The Center for Resource Economics.Library of Congress Cataloging-in-Publication data.International assessment of agricultural knowledge, science and technology for development (IAASTD) : global report / edited by Beverly D. McIntyre . . . [et al.].