The Nexus Platform is enabled by

Bundesministerium für wirtschaftliche Zusammenarbeit und Entwicklung
This project is co-funded by the European Union

(C) unsplash / Bhupesh Talwar

Research Papers, Publications and Books  |  , Resource  |   4 Apr 2017

Transboundary Water // An urban systems framework to assess the trans-boundary food-energy-water nexus: implementation in Delhi, India

By Anu Ramaswami, Dana Boyer, Ajay Singh Nagpure, Andrew Fang, Shelly Bogra, Bhavik Bakshi, Elliot Cohen and Ashish Rao-Ghorpade. his paper develops a generalizable systems framework to analyze the food-energy-water (FEW) nexus from an urban systems perspective, connecting in- and trans-boundary interactions, quantifying multiple environmental impacts of community-wide FEW provisioning to cities, and visualizing FEW supply-chain risks posed to cities by the environment.

Delhi's community-wide food demand includes household consumption by socio-economic-strata, visitors- and industrial food-use. This demand depends 90%, 76%, and 86% on trans-boundary supply of FEW, respectively. Supply chain data reveal unique features of trans-boundary FEW production regions (e.g. irrigation-electricity needs and GHG intensities of power-plants), yielding supply chain-informed coupled energy-water-GHG footprints of FEW provisioning to Delhi. Agri-food supply contributes to both GHG (19%) and water-footprints (72%–82%) of Delhi's FEW provisioning, with milk, rice and wheat dominating these footprints.

Analysis of FEW interactions within Delhi found >75% in-boundary water-use for food is for urban agriculture and >76% in-boundary energy-use for food is from cooking fuels. Food waste-to-energy and energy-intensity of commercial and industrial food preparation are key data gaps. Visualizing supply chains shows >75% of water embodied in Delhi's FEW supply is extracted from locations over-drafting ground water. These baseline data enable evaluation of future urban FEW scenarios, comparing impacts of demand shifts, production shifts, and emerging technologies and policies, within and outside of cities.


IOPScience website (open access)


February 2017


, ,

› back

Research Papers, Publications and Books  |  , Resource  |  23 Jun 2017

The Water-Energy-Food Nexus in East Asia // A Tele-connected Value Chain Analysis Using Inter-Regional Input-Output Analysis

By David J. White, Klaus Hubacek, Feng Kuishuang, Sun Laixiang and Bo Meng. This analysis demonstrates the hidden virtual flows of water, energy, and food embodied in intra-regional and transnational inter-regional trade. China’s...› more

Research Papers, Publications and Books  |  , Resource  |  23 Jun 2017

Perspectives on the Nexus // Water, Energy and Food Security in an Era of Climate Change

By Larry A. Swatuk and Corrine Cash. The article is an introduction to a collection that highlights the many and varied ways of analysing and understanding the outcomes of particular resource access, allocation and use decisions....› more

Policy Papers  |  , Resource  |  23 Jun 2017

Hydropower // Addressing Climate Vulnerability for Power System Resilience and Energy Security - A Focus on Hydropower Resources

By Molly Hellmuth, Pamela Cookson and Joanne Potter, ICF/USAid. Hydropower is always at the heart of the Nexus. This paper aims to inform energy planners and investors about i) how climate change can affect power generation...› more