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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. This 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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Resource  |  , Infographics  |  18 Apr 2018

A Simple Shift to More Sustainable Eating // Plant-based Burger Could Save Emissions Equal to 2 Million Cars

By Richard Waite, Daniel Vennard and Gerard Pozzi. Americans eat approximately 10 billion burgers each year. Replacing 30 percent of the beef in those burgers with mushrooms would, according to a study by the World Research...› more

Research Papers, Publications and Books  |  , Resource  |  , MENA  |  17 Apr 2018

Nexus in the MENA Region // Assessment of the Water-Energy Nexus in the Municipal Water Sector in Eastern Province, Saudi Arabia

By Homoud Al-Mutrafi, Waleed Al-Zubari, Alaa El-Sadek and Ibrahim Abdel Gelil. This paper performs an assessment of the water-energy nexus in the municipal sector of the Eastern Province of Saudi Arabia, where the electric energy...› more

Policy Papers  |  , Resource  |  , South America  |  17 Apr 2018

Strengthening Climate Resilience in Urban Amazonia // Experiences from Tarapoto and the Cumbaza Watershed in San Martín, Peru

This brief presents a Water-Energy-Food (WEF) nexus case study of the Cumbaza River watershed in San Martin, Peru. The dynamic socio-ecological pressures and complex water-energy-food system interdependencies that exist in...› more