Global food security under climate change
Open accessAbstract
This article reviews the potential impacts of climate change on food security. It is found that of the four main elements of food security, i.e., availability, stability, utilization, and access, only the first is routinely addressed in simulation studies. To this end, published results indicate that the impacts of climate change are significant, however, with a wide projected range (between 5 million and 170 million additional people at risk of hunger by 2080) strongly depending on assumed socio-economic development. The likely impacts of climate change on the other important dimensions of food security are discussed qualitatively, indicating the potential for further negative impacts beyond those currently assessed with models. Finally, strengths and weaknesses of current assessment studies are discussed, suggesting improvements and proposing avenues for new analyses.
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All recent calculations for food security and safety have concentrated mainly on the effects of climate changes in ways that did not measure the probability of substantial alteration in the rate of climate extremes on crop productivity.
“It is very crucial to observe that in case of food accessibility, all recent calculations for food security and safety have concentrated mainly on the effects of climate changes in ways that did not measure the probability of substantial alteration in the rate of climate extremes on crop productivity.”
From Impact of Climate Change on Crops Adaptation and Strategies to Tackle Its Outcome: A Review (2019) · cites this paper as [64]
Recent calculations have also not considered situations of sudden changes in socio-economic status and climate, so all these factors have been putting negative impacts on global food security and safety.
“They have also not considered the situations of sudden changes in socio-economic status and climate, so all these factors have been putting negative impacts on global food security and safety [64].”
From Impact of Climate Change on Crops Adaptation and Strategies to Tackle Its Outcome: A Review (2019) · cites this paper as [64]
In temperate regions and humid grassland zones, a slight elevation in temperature may raise pasture productivity.
“In temperate regions and humid grassland zones, a slight elevation in temperature may raise the pasture productivity.”
From Impact of Climate Change on Crops Adaptation and Strategies to Tackle Its Outcome: A Review (2019) · cites this paper as [64]
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- Authors
- Schmidhuber, J., & Tubiello, F. N.
- Affiliations
- Food and Agriculture Organization of the United Nations (IT)
- International Institute for Applied Systems Analysis (AT)
- Venue
- Proceedings of the National Academy of Sciences
- Publisher
- National Academy of Sciences
- Published
- 2007-12-11
- Volume
- 104
- Issue
- 50
- Pages
- 19703-19708
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- PMC
- PMC2148361
- OpenAlex
- W2123699526
- Cited by
- 2,128
- References
- 33
- Citations by year
- 2026: 64 · 2025: 134 · 2024: 141 · 2023: 116 · 2022: 167 · 2021: 231 · 2020: 157 · 2019: 142 · 2018: 140 · 2017: 128 · 2016: 112 · 2015: 103 · 2014: 108 · 2013: 102 · 2012: 86
- FWCI
- 4.71
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Locations
- Proceedings of the National Academy of Sciences (publishedVersion)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- IIASA PURE (International Institute of Applied Systems Analysis) (acceptedVersion)
- Topics
- Life Sciences › Agricultural and Biological Sciences › Ecology, Evolution, Behavior and Systematics › Climate change impacts on agriculture
- Physical Sciences › Environmental Science › Ecology › Agriculture Sustainability and Environmental Impact
- Life Sciences › Agricultural and Biological Sciences › General Agricultural and Biological Sciences › Food Security and Socioeconomic Dynamics
- Keywords
- climate change impacts, food security, food availability, food stability, food utilization, food access, socio-economic development scenarios, climate impact assessment
- MeSH terms
- Agriculture, Climate, Food Supply, Forecasting, Humans, Greenhouse Effect
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