Water scarcity, livelihoods and food security: research and innovation for development

2015 ◽  
Vol 31 (4) ◽  
pp. 795-799
Author(s):  
Douglas J. Merrey
2014 ◽  
Vol 41 (3-4) ◽  
pp. 117 ◽  
Author(s):  
William Ramp

Food security is now commonly seen as one of the defining global issues of the century, intertwined with population and consumption shifts, climate change, environmental degradation, water scarcity, and the geopolitics attending globalization. Some analysts suggest that food security threats are so urgent that philosophical scruples must be set aside in order to concentrate all resources on developing and implementing radical strategies to avert a looming civilizational crisis. This article suggests that definitions of food security invoke commitments and have consequences, and that continued critical and conceptual attention to the language employed in food security research and policy is warranted.


2016 ◽  
pp. 215-245
Author(s):  
Shannon Donovan ◽  
Renata Ballesteros-Lopez ◽  
Liza Root ◽  
Shaina Seidner ◽  
Carol McCarty ◽  
...  

2018 ◽  
Vol 10 (5) ◽  
pp. 183
Author(s):  
Angela McIntyre ◽  
Sheryl L Hendriks

INTRODUCTION: The presence of concurrent childhood stunting and adult obesity observed in poor, rural, former homeland communities in South Africa appears to be explained by nutrition transition, but the factors shaping rural food security are still poorly understood. Localized constraints and capabilities are often overlooked by food security policies, strategies and programs. Grounding food security data in local contexts is often a missing step in the diagnosis of food insecurity.AIMS: This qualitative study aimed to engage members of poor rural communities in generating a more grounded, localized understanding of food insecurity.METHOD: Members of South Africa’s poorest rural communities were asked to validate and interpret food production, consumption and nutrition data from a three-year, multidisciplinary food security study, with the aid of graphic presentations to overcome literacy barriers.RESULTS: Interpretations of food security research findings by communities revealed unique local experiences and understandings of food insecurity.CONCLUSION: Engaging people in the joint diagnosis of their food security challenges generates information on the environmental, economic and cultural conditions that shape experiences of hunger and influence nutrition outcomes, which are not always captured by conventional food security analyses. More inclusive and participatory research could support the design of more effective food security interventions in marginalized rural communities.


2001 ◽  
Vol 43 (4) ◽  
pp. 61-70 ◽  
Author(s):  
M. W. Rosengrant ◽  
X. Cai

Water availability for agriculture - the major water user worldwide - is one of the most critical factors for food security in many regions of the world. The role of water withdrawals in irrigated agriculture and food security has been receiving substantial attention in recent years. This paper addresses key questions regarding water availability and food security, including: How will water availability and water demand evolve over the next three decades, taking into account availability and variability in water resources, the water supply infrastructure, and irrigation and nonagricultural water demands? What are the relationships among water scarcity, food production, and food security? How much of future food production will come from rainfed and irrigated areas? A global modeling framework, IMPACT-Water, is applied to explore answers to these questions using analysis.


2019 ◽  
Vol 5 (9) ◽  
pp. eaau2406 ◽  
Author(s):  
Miroslav Trnka ◽  
Song Feng ◽  
Mikhail A. Semenov ◽  
Jørgen E. Olesen ◽  
Kurt Christian Kersebaum ◽  
...  

Global warming is expected to increase the frequency and intensity of severe water scarcity (SWS) events, which negatively affect rain-fed crops such as wheat, a key source of calories and protein for humans. Here, we develop a method to simultaneously quantify SWS over the world’s entire wheat-growing area and calculate the probabilities of multiple/sequential SWS events for baseline and future climates. Our projections show that, without climate change mitigation (representative concentration pathway 8.5), up to 60% of the current wheat-growing area will face simultaneous SWS events by the end of this century, compared to 15% today. Climate change stabilization in line with the Paris Agreement would substantially reduce the negative effects, but they would still double between 2041 and 2070 compared to current conditions. Future assessments of production shocks in food security should explicitly include the risk of severe, prolonged, and near-simultaneous droughts across key world wheat-producing areas.


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