BOOK REVIEWS - Soil Carbon Management, Economic, Environmental and Societal Benefits. Edited by J. M. Kimble, C. W. Rice, D. Reed, S. Mooney, R. F. Follett and R. Lal. Boca Raton, FL, USA: CRC Press (2007), pp. 268, £74.99. ISBN-13: 978-1-4200-4407-2.