March/April 2013 Vol. 20 No. 2 Magazine Staff: Donna Hull, Publisher, email@example.com; Sue Mitrovich, Managing Editor, firstname.lastname@example.org; Glenn Laing, Contributing Editor, email@example.com; Melissa Miller, Professional Opportunities and Production Editor, firstname.lastname@example.org; Sandy Rutter, Professional Listings, email@example.com; Darrin Drollinger, ASABE Executive Director, firstname.lastname@example.org. Editorial Board: Chair Brian Steward, Iowa State University; Secretary/Vice Chair, Tony Grift, University of Illinois; Past Chair Rafael Garcia, USDA-ARS; Thomas Brumm, Iowa State University; Victor Duraj, University of California, Davis; William Reck, USDA-NRCS; Shane Williams, Kuhn North America; Chad Yagow, John Deere Harvester Works; Jeong Yeol Yoon, University of Arizona. Resource: Engineering & Technology for a Sustainable World (ISSN 1076-3333) (USPS 009-560) is published six times per year— January/February, March/April, May/June, July/August, September/October, November/December—by the American Society of Agricultural and Biological Engineers (ASABE), 2950 Niles Road, St. Joseph, MI 49085-9659, USA. POSTMASTER: Send address changes to Resource, 2950 Niles Road, St. Joseph, MI 49085-9659, USA. Periodical postage is paid at St. Joseph, MI, USA, and additional post offices. SUBSCRIPTIONS: Contact ASABE order department, 269-932-7004. COPYRIGHT 2013 by American Society of Agricultural and Biological Engineers. Permission to reprint articles available on request. Reprints can be ordered in large quantities for a fee. Contact Donna Hull, 269-932-7026. Statements in this publication represent individual opinions. Resource: Engineering & Technology for a Sustainable World and ASABE assume no responsibility for statements and opinions expressed by contributors. Views advanced in the editorials are those of the contributors and do not necessarily represent the official position of ASABE. engineering and technology for a sustainable world March/April 2013 FEATURES 4 The First Word— Exploring Urban Agriculture Guest Editors Gene Giacomelli and Michael Munday 6 7 Peri-Urban Horizontal Greenhouses Louis Albright Maximizing Efficiency in Closed Ecosystems Alberto Battistelli 8 The Need for Vertical Farms— Why We Can Have Them Now Dickson Despommier with Michael Munday Egyptian farmer with crop from new cultivars. Photo courtesy of Merle H. Jensen. 9 The Case for Space Michael Dixon 10 “Systems Agriculture” to Feed Nine Billion Nina Fedoroff 24 Urban Land Problems Yield to Soil-less Solutions Giacomo Scarascia-Mugnozza and Pietro Santamaria 11 Meeting Educational Needs in Controlled Environment Agriculture Merle H. Jensen 25 The Future for Urban Greenhouses is Well-Grounded Paul Selina 12 What PFAL Means to Urban Agriculture Toyoki Kozai 26 A Systems Concept for Controlled Environment Plant Production K. C. Ting 13 The Future of Controlled Environment Agriculture Alec Mackenzie 27 The Potential—and Limitations— of Urban Farming Marc van Iersel 14 Greenhouse Production in The Netherlands Leo F. M. Marcelis and Silke Hemming 28 Food Production as Part of a Biobased Economy Peter van Weel 15 The Role of Urban Food Production Jennifer Nelkin 29 Spain and la Huerta Urbana Jeremy Werner 16 Feeding the World in Unexpected Ways 18 Urban Growers Battle Food Insecurity in Kenya Allan Odhiambo DEPARTMENTS 2 President’s Message Events Calendar AE50 Gold and Silver Winners 30 Professional Opportunities 31 Professional Listings ON THE COVER: Village Farms, International, Inc. GATES ™ advanced technology greenhouse, Monahans, Texas. Courtesy of Village Farms © 2013. 19 Designing and Building a Sustainable Urban Community Devon Patterson 20 Feeding Nine Billion by Cultivating Innovation Haley Paul 21 Urban Agriculture: A New Paradigm of Planning and Policy Emmanuel Pratt 22 Lufa Farms: A Model of Responsible Urban Agriculture American Society of Agricultural and Biological Engineers 2950 Niles Road St. Joseph, MI 49085-9659, USA 269.429.0300, fax 269.429.3852 email@example.com, www.asabe.org Lauren Rathmell 23 Bringing Slow Food to the City— and to the Stars Silvio Rossignoli ERRATA In the January/February 2013 issue, author Daniel L. Thomas, Oklahoma State University, should have been identified as Professor and Head of the Biosystems and Agricultural Engineering Department (not the Department of Biological and Agricultural Engineering). Resource regrets the error.