The FAO/NRD sponsored paper on Enhanced top soil carbon stocks under organic farming is now online in the early edition of PNAS: http://www.pnas.org/content/early/2012/10/10/1209429109.full.pdf+html Cheers, Nadia ######################################################################## To unsubscribe from the Organic-Farming-L list, click the following link: https://listserv.fao.org/scripts/wa-fao.exe?SUBED1=ORGANIC-FARMING-L