Open Access
Food security and food production systems
John R. Porter,Liyong Xie,Andrew J. Challinor,Kevern L. Cochrane,S. Mark Howden,Muhammad Iqbal,David B. Lobell,Maria I. Travasso,Netra Chhetri,Karen A. Garrett,John Ingram,Leslie Lipper,Nancy McCarthy,Justin M. McGrath,Daniel R. Smith,Philip K. Thornton,James E. M. Watson,Lewis H. Ziska +17 more
- pp 485-533
TLDR
The questions for this chapter are how far climate and its change affect current food production systems and food security and the extent to which they will do so in the future.Abstract:
Many definitions of food security exist, and these have been the subject of much debate. As early as 1992, Maxwell and Smith (1992) reviewed more than 180 items discussing concepts and definitions, and more definitions have been formulated since (DEFRA, 2006). Whereas many earlier definitions centered on food production, more recent definitions highlight access to food, in keeping with the 1996 World Food Summit definition (FAO, 1996) that food security is met when “all people, at all times, have physical and economic access to sufficient, safe, and nutritious food to meet their dietary needs and food preferences for an active and healthy life.” Worldwide attention on food access was given impetus by the food “price spike” in 2007–2008, triggered by a complex set of long- and short-term factors (FAO, 2009b; von Braun and Torero, 2009). FAO concluded, “provisional estimates show that, in 2007, 75 million more people were added to the total number of undernourished relative to 2003–05” (FAO, 2008); this is arguably a low-end estimate (Headey and Fan, 2010). More than enough food is currently produced per capita to feed the global population, yet about 870 million people remained hungry in the period from 2010 to 2012 (FAO et al., 2012). The questions for this chapter are how far climate and its change affect current food production systems and food security and the extent to which they will do so in the future (Figure 7-1).read more
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Related Papers (5)
Climate Trends and Global Crop Production Since 1980
Summary for Policymakers
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