Transcription of Global food security under climate change - pnas.org
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Global food security under climate change - pnas.org
Global food security under climate changeJosef Schmidhuber* and Francesco N. Tubiello * Global Perspective Studies Unit, food and agriculture Organization, 00100 Rome, Italy; Center for climate Systems Research, Columbia University,New York, NY 10025; and Land Use change Program, International Institute for Applied Systems Analysis, A-2361 Laxenburg, AustriaEdited by William Easterling, Pennsylvania State University, University Park, PA, and accepted by the Editorial Board August 16, 2007 (received forreviewMarch 3, 2007)This article reviews the potential impacts of climate change on foodsecurity. It is found that of the four main elements of food security , , availability, stability, utilization, and access, only the first isroutinely addressed in simulation studies. To this end, publishedresults indicate that the impacts of climate change are significant,however, with a wide projected range (between 5 million and 170million additional people at risk of hunger by 2080) stronglydepending on assumed socio-economic development.
Global food security under climate change Josef Schmidhuber*† and Francesco N. Tubiello‡§ *Global Perspective Studies Unit, Food and Agriculture Organization, 00100 Rome, Italy; ‡Center for Climate Systems Research, Columbia University, New York, NY 10025; and §Land Use Change Program, International Institute for Applied Systems Analysis, A-2361 Laxenburg, Austria
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