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      An African perspective on the Water-Energy-Food nexus

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          Abstract

          There is a need to address resource security and distributional justice in developing countries. People need water, energy, and food to sustain their livelihoods, grow economies, and achieve sustainable development. The interactions between these resource sectors form the crux of water-energy-food (WEF) nexus assessments. In this study, we have utilised the WEF Nexus Index to analyse the WEF nexus of 54 African nations. The results from the analysis were used to illustrate the opportunities and constraints for future development. Generally, African countries are performing sub-optimally in the WEF Nexus Index due to the insecurity of water, energy and/or food. The performance of countries varies with context, highlighting the need for contextual analysis in identifying challenges and potential solutions. Implementation of interventions for achieving WEF security needs to be planned from an integrated perspective to optimise synergies and minimize trade-offs. Implementation of the WEF nexus approach towards simultaneous security of WEF resources has potential to improve the WEF nexus. For example and for many African countries, policies that undergird investments in energy supply projects are needed to unlock available freshwater resources and meet food requirements—energy is shown to be a critical enabler of development. Such projects can be utilised to enhance the ability of farmers to manage water through drought-proofing rainfed agriculture, an increase in irrigation development, or both. WEF nexus-based studies, policies, and projects must be focused on the direct and indirect achievement of SDGs 1, 2, 6, 7, and 13, both in terms of access and availability, to ensure distributional justice, especially in the African context. Such actions, combined with broad public participation, can have a ripple effect on other SDGs such as SDGs 5, 10, and 17, thereby reducing inequalities and building partnerships to attain these aspirational goals. The assessment of Africa’s relatively low scores in terms of the WEF Nexus Index does not represent a negative narrative. Instead, it provides an entry point to identifying hotspots and understanding the underlying challenges, through which more detailed analyses can lead to identified solutions and policies. Many African countries are trapped in an environment that could be termed a ‘poverty-unemployment-inequality nexus’ (due to the interlinkages that exist between these ‘wicked’ problems). The WEF Nexus Index provides high-level insights into these opportunities.

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          Closing yield gaps through nutrient and water management.

          In the coming decades, a crucial challenge for humanity will be meeting future food demands without undermining further the integrity of the Earth's environmental systems. Agricultural systems are already major forces of global environmental degradation, but population growth and increasing consumption of calorie- and meat-intensive diets are expected to roughly double human food demand by 2050 (ref. 3). Responding to these pressures, there is increasing focus on 'sustainable intensification' as a means to increase yields on underperforming landscapes while simultaneously decreasing the environmental impacts of agricultural systems. However, it is unclear what such efforts might entail for the future of global agricultural landscapes. Here we present a global-scale assessment of intensification prospects from closing 'yield gaps' (differences between observed yields and those attainable in a given region), the spatial patterns of agricultural management practices and yield limitation, and the management changes that may be necessary to achieve increased yields. We find that global yield variability is heavily controlled by fertilizer use, irrigation and climate. Large production increases (45% to 70% for most crops) are possible from closing yield gaps to 100% of attainable yields, and the changes to management practices that are needed to close yield gaps vary considerably by region and current intensity. Furthermore, we find that there are large opportunities to reduce the environmental impact of agriculture by eliminating nutrient overuse, while still allowing an approximately 30% increase in production of major cereals (maize, wheat and rice). Meeting the food security and sustainability challenges of the coming decades is possible, but will require considerable changes in nutrient and water management.
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            • Record: found
            • Abstract: not found
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            Agriculture. Nutrient imbalances in agricultural development.

              Bookmark
              • Record: found
              • Abstract: not found
              • Article: not found

              The political economy of the ‘just transition’

                Bookmark

                Author and article information

                Contributors
                garethbsimpson@gmail.com
                Journal
                Sci Rep
                Sci Rep
                Scientific Reports
                Nature Publishing Group UK (London )
                2045-2322
                6 October 2023
                6 October 2023
                2023
                : 13
                : 16842
                Affiliations
                [1 ]WSP, Newcastle, Australia
                [2 ]IHE Delft Institute for Water Education, ( https://ror.org/030deh410) Delft, The Netherlands
                [3 ]Civil Engineering and Geosciences, Delft University of Technology, ( https://ror.org/02e2c7k09) Delft, The Netherlands
                [4 ]Centre for Water Resources Research, College of Agriculture, Engineering and Science, University of KwaZulu-Natal, ( https://ror.org/04qzfn040) Pietermaritzburg, South Africa
                [5 ]Centre for Transformative Agricultural and Food Systems, College of Agriculture, Engineering, and Science, University of KwaZulu-Natal, ( https://ror.org/04qzfn040) Pietermaritzburg, South Africa
                [6 ]GRID grid.517879.5, International Water Management Institute, West Africa Office, ; Accra, Ghana
                [7 ]School of Engineering, College of Agriculture, Engineering and Science, University of KwaZulu-Natal, ( https://ror.org/04qzfn040) P. Bag X01, Pietermaritzburg, 3209 South Africa
                [8 ]Worley, London, England
                Article
                43606
                10.1038/s41598-023-43606-9
                10558539
                37803054
                0a02fe8f-7e0a-41dd-9b74-182a3e9e66e4
                © Springer Nature Limited 2023

                Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

                History
                : 25 September 2022
                : 26 September 2023
                Funding
                Funded by: Ministry of Foreign Affairs of the Netherlands through the WEF-Tools project of the Partnership Programme for Water and Development (DUPC2)
                Award ID: 28325 / DME0121369
                Award ID: 28325 / DME0121369
                Award Recipient :
                Funded by: FundRef http://dx.doi.org/10.13039/501100004424, Water Research Commission;
                Award ID: K5/2959
                Award ID: K5/2959
                Award Recipient :
                Funded by: FundRef http://dx.doi.org/10.13039/501100001321, National Research Foundation;
                Award ID: 114692
                Award Recipient :
                Categories
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                Custom metadata
                © Springer Nature Limited 2023

                Uncategorized
                environmental impact,civil engineering
                Uncategorized
                environmental impact, civil engineering

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