Resilience and reactivity of global food security

The escalating food demand by a growing and increasingly affluent global population is placing unprecedented pressure on the limited land and water resources of the planet, underpinning concerns over global food security and its sensitivity to shocks arising from environmental fluctuations, trade policies, and market volatility. Here, we use country-specific demographic records along with food production and trade data for the past 25 y to evaluate the stability and reactivity of the relationship between population dynamics and food availability. We develop a framework for the assessment of the resilience and the reactivity of the coupled population-food system and suggest that over the past two decades both its sensitivity to external perturbations and susceptibility to instability have increased.


Published in:
Proceedings Of The National Academy Of Sciences Of The United States Of America, 112, 22, 6902-6907
Year:
2015
Publisher:
Washington, Natl Acad Sciences
ISSN:
0027-8424
Keywords:
Laboratories:




 Record created 2015-09-28, last modified 2018-03-17


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