Pulse Brain · Growing Health Evidence Index
Tier 3 — Observational / field trialPeer-reviewed

The vulnerabilities of agricultural land and food production to future water scarcity

Nuala Fitton, Peter Alexander, Nigel W. Arnell, Bojana Bajželj, Katherine Calvin, Jonathan Doelman, James Gerber, Peter Havlík, Tomoko Hasegawa, Mario Herrero, Tamás Krisztin, Hans van Meijl, Thomas Powell, Ronald D. Sands, Elke Stehfest, Paul West, Pete Smith

Global Environmental Change · 2019

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Summary

This multi-model study examined the intersection of future water availability and agricultural land vulnerability, finding that approximately 11% of global croplands and 10% of grasslands face productive capacity loss due to declining water resources. Africa, the Middle East, China, Europe and Asia emerge as particularly at-risk regions. The authors demonstrate that dietary shifts—notably reduced food waste and decreased meat consumption—offer the most substantial buffer against climate-driven land loss and associated food insecurity.

UK applicability

Europe is identified as a region of particular risk in this global analysis, suggesting UK agriculture may face water-related vulnerabilities despite relative water abundance in some regions. The findings support UK policy interest in sustainable intensification and dietary transition as resilience measures.

Key measures

Percentage of croplands and grasslands at risk from water scarcity; regional vulnerability mapping; land area loss projections; effectiveness of dietary change and food waste reduction as policy interventions

Outcomes reported

The study quantified the proportion of global croplands and grasslands vulnerable to reduced water availability and evaluated how dietary interventions might mitigate resulting land loss and food insecurity. Multi-model comparison assessed future land demand and water availability under climate change scenarios, with particular focus on regional vulnerability.

Theme
Climate & resilience
Subject
Food security & global nutrition
Study type
Research
Study design
Multi-model intercomparison study
Source type
Peer-reviewed study
Status
Published
Geography
Global
System type
Mixed farming
DOI
10.1016/j.gloenvcha.2019.101944
Catalogue ID
BFmou2mefv-w261tw

Topic tags

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