This publication also consolidates the methodology which was developed under the Water Convention specifically for the purpose of assessing nexus issues and identifying solutions in transboundary basins. Its development involved a broad range of expertise, gradual refinement upon use, and an intergovernmental review process.
The publication was developed in response to a decision by the Meeting of the Parties in 2015 to promote the application of the methodology in other basins worldwide through the sharing of experiences. The publication also aims to foster follow-up action to the nexus assessments.
A key dimension of the methodology is the facilitation of multistakeholder dialogues, which convene sector Ministries from riparian countries with often diverging interests in developing and benefitting from a river basin ̶ be it for irrigated agriculture, eco-tourism or energy generation. With the nexus approach, trade-offs and impacts but also mutual interests are identified. This step is subsequently followed by determining jointly with the authorities and stakeholders packages of policy and technical measures to address the problems identified. This intersectoral transboundary dialogue is coupled with a structured analysis, considering technical aspects and governance across sectors.
With this composition, the participatory assessment of the nexus applying the methodology provides a better basis from which to address the common challenges of coherence between sectoral policies (as well as between environment and climate policies) and integrated planning. Related shortcomings result in negative impacts causing friction between riparian countries, inefficiencies at different levels, and missed opportunities for more sustainable and cooperative development. The international community explicitly calls for a nexus approach in efforts to implement the Sustainable Development Goals (SDGs).
The assessment process can assist countries seeking to initiate, broaden or revisit transboundary cooperation. Furthermore, the resulting insights can also help reinforce national efforts to optimize resource use (e.g. through improved efficiency), improve policy coherence and achieve co-management benefits.
The main audiences for this publication are authorities involved in natural resources management, regional organizations and cooperation organizations, international organizations, bilateral development partners, and technical experts.
The Water Convention aims to ensure the sustainable use of transboundary water resources by facilitating cooperation.
The Convention on the Protection and Use of Transboundary Watercourses and International Lakes (Water Convention) was adopted in Helsinki in 1992 and entered into force in 1996. Almost all countries sharing transboundary waters in the region of the United Nations Economic Commission for Europe (UNECE) are Parties to the Convention.
The Water Convention strengthens transboundary water cooperation and measures for the ecologically-sound management and protection of transboundary surface waters and groundwaters. The Convention fosters the implementation of integrated water resources management, in particular the basin approach. The Convention’s implementation contributes to the achievement of the Millennium Development Goals and other international commitments on water, environment and sustainable development.
- Publication // Reconciling resource uses: Assessment of the water-food-energy-ecosystems nexus in the North Western Sahara Aquifer System Part A - "Nexus Challenges and Solutions"
- Publication // Towards sustainable renewable energy investment and deployment; Trade-offs and opportunities with water resources and the environment
- Policy Brief // Reconciling resource uses in transboundary basins: assessment of the Water-Food-Energy-Ecosystems Nexus
- Nexus Interactive Publication // UNECE Story Map on Water-Food-Energy Ecosystems Nexus Approach