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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.

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February 2017

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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