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Food Security, Environmental Change, Biodiversity, and Interdependencies
Jeff BrawnDepartment of Natural Resources and Environmental Sciences
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From: IPCC 5th Assessment (2014), Food Security and Food Production Systems
Environment and Ecological Processes
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• Ecological Services are essential elements of sustainable and resilient food systems
• All components of food security - availability, stability, access, and utilization – are affected by environmental change (from anthropogenic or
“natural” sources)
First Principles/Assertions
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“Ecosystem goods and services represent the benefits human populations derive, directly or indirectly from
ecosystem functions” (Costanza et al. 1997)
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“Ecosystem goods and services represent the benefits human populations derive, directly or indirectly from
ecosystem functions” (Costanza et al. 1997)
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Sundstrom et al. 2014. Food Security 6:201-2015
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Climate change will affect supply and the ability of individuals to use food effectively by altering the conditions for food safety and changing disease pressure from vector, water, and food-borne
diseases
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Bebber et al. 2013Nature Climate Change
Crop Pests Are Moving Poleward
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• The integrity of ecological systems can determine the diversity and the quality of ecological services
• Environmental changes alter ecological services and dis-services to food systems and food
security
• The spatial scale of this dynamic can be local to regional