Climate Change

Tool // Climate, Land (Food), Energy and Water Systems Approach (CLEWs)

The Climate, Land (Food), Energy and Water systems approach (CLEWs) focuses on assessing interlinkages between resource systems in order to understand how these are related with each other, where pressure points exist, and how to minimize trade-offs while potentiating synergies. The framework is applicable to different geographical scales, from global, to regional, national and urban levels. ​The tool is used and actively developed in partnership with UNDESA and the UNDP.

#embed id=4270

The Climate, Land (Food), Energy and Water systems approach (CLEWs) focuses on assessing interlinkages between resource systems in order to understand how these are related with each other, where pressure points exist, and how to minimize trade-offs while potentiating synergies. This type of integrated assessments usually involve a strong quantification process which can be performed in different scales of complexity, either by 1) the use of accounting frameworks; 2) via the development of sectoral models (for water, energy and land use), and subsequent soft-linking of tools in an iterative process; or 3) making using of one single modelling tool that accounts for the representation of several cross- and inter-systems’ interactions. The models are then used to investigate questions related to the relevant nexus interactions.
The framework is applicable to different geographical scales, from global, to regional, national and urban levels. At the urban scale is was successfully applied to case study of New York City for the investigation of water and energy system interventions, exploring the interlinkages and cross-sectoral implications of single-resource management. These are just examples, and the questions and scenarios to be analysed are adaptable and specific to each country/region circumstances.
The tool is used and actively developed in partnership with UNDESA and the UNDP. They form integral parts of the Global OpTIMUS (Open Tools, Integrated Modelling and Upskilling for Sustainable Development) community of practice.
More information on CLEWs

Projects

The CLEWs methodology has been employed in a variety of projects that span over different scales and regions, with partner institutions across the world. The projects aim at disseminating the importance of nexus thinking for the development of integrated policies and sectoral strategies, that are sound and effectively contribute to the achievement of Sustainable Development.
More information on CLEWs projects 

CLEWs Modeling Examples

The Global CLEWS model provides useful insights about the relationships among water, energy, climate, and land and material use at the global scale. It was developed to inform Rio+20 discussions and will soon be upgraded to provide useful insights about the interlinkages among climate, land, materials, energy and water underlying the relationships among many of the Sustainable Development Goals (SDGs). The challenge of progressing towards the SDGs is best approached taking into account synergies and trade-offs among them.
More information on CLEWs models

Contact

Division of Energy System Analysis
KTH Royal Institute of Technology
Brinellvägen 68
S-100 44 Stockholm
www.desa.kth.se
​clews@desa.kth.se

Further Reading 

#embed id=4276;4178 class=list

 

› back

Governance

WEF Nexus Research // Solar Energy Farming as a Development Innovation for Vulnerable Water Basins

By Mohammad Al-Saidi and Nisreen Lahham. This article evaluates a project from the Azraq Basin in Jordan, and presents similar international experiences, particularly from India. It assesses solar energy farming as an innovation from a water-energy-food nexus perspective.

// more
Resource

Learning // The Nexus Game

The Nexus Game gives participants a unique opportunity to get an insight into the challenges of water management for producing energy and food, fulfilling the needs of the population, and sustaining environmental flows. The aim of the game is to provide an opportunity to practice how different water management policies can lead to the sustainable development of society in harmony with Nature.

// more
Research

Blog // What can Transdisciplinarity give back to Communities?

This article presents a research project conducted by the STEPS Centre, using the WEFE Nexus as a conceptual tool for transdisciplinary engagement through urban gardening in the peripheral area Novo Recreio in north Guarulhos, part of the Metropolitan Region of São Paulo, Brazil. It shows the notion of the WEFE Nexus has the potential to bring people together across different siloes, organisations, identities, institutions, levels and sectors. But could it contribute to wider struggles against...

// more