Case studies


12 case studies will be developed during the project at regional, national, continental and global scale. The case studies will serve as test-beds for the models, the integration methodologies and the Serious Game. In all the case studies, the aim is to study the Nexus trade-offs and the impact of different policies for the future. In all regional and national case studies, we are planning to engage local stakeholders and decision makers (actors) for the development and testing of the strategies, the policies, and the Serious Game. Stakeholders will be involved from the start of the project.



Lead Partners: PBL Netherlands Environmental Assessment Agency and Royal Insitute of Technology KTH with contributions from WUR-LEI

The European case study will be extended towards global level. It will be lower in detail and higher in integration, focusing on global challenges (e.g. increasing food demand) and international trade features connected to the Nexus. While in principle addressing large world regions, downscaling to pinpoint hotspots (using gridded information) and geographic regions is possible. The policy priorities include food security, resource efficiency, low-carbon energy and climate change mitigation, water availability and vulnerability to water stress and floods, water quality, biodiversity and ecosystem services. The prevailing Nexus policy challenges to be addressed relate to (i) the impact of water constraints on food security and broader human development (clean water for human use; industrial and energy water demands), as well as (ii) the impact of climate change on aggravating or relieving water problems. Nexus-compliant approaches search for broad-scale synergies and trade-offs between options in achieving multiple goals, e.g. by combining water allocation demands among sectors. Using a simplified integrated assessment model allows for exploring divergence, robustness and flexibility of global development pathways and options like infrastructure investments. Relevant aspects are subject of UN Conventions (UNFCCC, UNCBD, UNCSD, Ramsar Convention, UNCCD) and reside under a variety of UN (UNEP, UN-Water, FAO, IPCC, IPBES, others) and other international organisations (OECD, G7, others). Several of the Thematic Models have global coverage. This will enable us to explore the creation of a Serious Game at Global Level, with a strong scientific background, but limited in scope due to the high aggregation level.


For more information please contact:

Elke Stehfest:

Jan Janse:

Georgios Avgerinopoulos:

Hans van Meijl:


Floor Brouwer


SIM4NEXUS contributes to the Energy Modelling Platform for Europe (EMP-E)


SIM4NEXUS at UNFCCC side event in Bonn


SIM4NEXUS partners commence the second project year and meet in Czech Republic