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Lecture 10

AGRON 160 Lecture 10: Grand Challenges in Environmental Sustainability (Global Food Threats)

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Franz Kristie

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Grand Challenges in Environmental Sustainability (Global Food Threats) Donald L. Sparks Global Food Systems Threats • Climate change • Soil and ecological degradation • Population growth • Rising energy and fertilizer shortages/prices • Increasing demand for meat and dairy productions • Urban expansion • Increasing competition for land from biofuels • Conflicts over water • Food Security o Population 7.2 billion  9.6 billion by 2050 o Food production must increase by 70% to feed this population ▪ Meat consumption per person in china has increase from 4kg/year in 1961 to 58 kg/year in 2009 ▪ Food waste: >50% in USA o 925 million hungry people o Food prices could more than double by 2030 ▪ Climate change responsible for 50% of ris
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