Dr. Mannava V. K. Sivakumar

Agricultural Meteorology Division World Meteorological Organization 7bis, Avenue de la Paix 1211 Geneva 2, Switzerland

Dr. James Hansen

Agricultural Systems

International Research Institute for Climate and Society The Earth Institute at Columbia University 121 Monell Bldg., Lamont-Doherty Earth Observatory PO Box 1000/61 Route 9W Palisades, NY 10964-8000, USA

Library of Congress Control Number: 2007921994

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