Knowledge for better food systems

Showing results for: Water use/consumption

Image: olle svensson, avocado, Flickr, Creative Commons Attribution 2.0 Generic
4 June 2018

Some avocado plantation owners in Chile are illegally diverting water from rivers and leaving local villagers without enough water, according to a feature in the Guardian. Demand for avocados has increased by 27% in the UK in the last year. Activist Veronica Vilches claimed that local people are getting sick because of the lack of water, while activist Rodrigo Mundaca says that the water provided to resident by trucks is of poor quality.

Image: Hydrosami, Drought land dry mud BOUHANIFIA Algeria, Wikimedia Commons, Creative Commons Attribution-Share Alike 4.0 International
26 May 2018

Researchers from Nasa have used satellite data to identify areas where freshwater reserves have increased or decreased. The study found that in 14 regions, the changes were likely due to human factors (e.g. groundwater pumping), and in 8 areas, the changes were caused mainly by climate (e.g. drought or ice-sheet melting). Freshwater availability decreased in several areas including northern India, north-east China, the Caspian and Aral Seas and some of the Middle East.

21 January 2018

This book, edited by Raimund Bleischwitz, Holger Hoff, Catalina Spataru, Ester van der Voet and Stacy D. VanDeveer, explores the concept of the ‘resource nexus’.

Photo: USDA NRCS, Flickr, Creative Commons License 2.0
21 January 2018

This article examines global overuse of freshwater resources and how more sustainable irrigation practices could impact other environmental and developmental targets in the SDGs. It finds that the main likely effects are 1) increased food prices due to lower productivity and/or production costs as water prices increase, and 2) cropland expansion and associated extra GHG emissions of 0.87 gigatonnes of carbon.

12 December 2017

The U.S. Geological Survey (USGS) has released a worldwide map that details croplands in high resolution in an ongoing effort to monitor croplands and water use.

12 December 2017

The planetary boundaries concept provides a theoretical upper limit on human activity which the planet is able to sustain without major perturbation to the current ‘Earth system’. Previously, nine planetary boundaries (PBs) have been proposed and recently Steffen et al. (2015) have updated these boundary definitions and assessed the current state of the position of human activity with respect to each boundary. In this article, researchers from a number of food, climate change, agricultural and environmental research institutions around the world build on this work by assessing the impact of agriculture on each PB status, based on a detailed literature review of the available research.

28 November 2017

This new book, edited by Laura M. Pereira, Caitlin A. McElroy, Alexandra Littaye and Alexandra M. Girard, presents a diversity of collaborations between various governance actors in the management of the Food-Energy-Water (FEW) nexus and analyses the ability of emergent governance structures to cope with the complexity of future challenges across FEW systems worldwide.

Photo: Fooding around, Fruit Walla New Delhi, Flickr, Creative Commons License 2.0 generic.
30 October 2017

This paper by FCRN member Dana Boyer examines how policy interventions at the city scale can affect three environmental outcomes of food production: greenhouse gas emissions, water use and land use. It uses India’s capital city Delhi as a case study. It sets out to assess the magnitude of city-scale food system actions as compared to certain actions which can be taken beyond the city boundary.

Photo: Chris Happel, irrigation at dawn, Flickr, Creative Commons License 2.0 generic.
19 April 2017

This research identifies the major crops and countries contributing to groundwater depletion. The authors found that 11 percent of unsustainable groundwater used for irrigation is embedded in international crop trade. They highlight the main exporters and importers of these crops, and the associated risks for local and global food and water security.

Photo credit: Neil Palmer, CIAT, Flickr, Creative Commons License 2.0
29 November 2016

This study models the water demand of land acquisitions in Africa as a function of crop choice, local climate, and irrigation scenarios. Its authors distinguish between green and blue water, equating to water from rainfall and that provided to crops by irrigation respectively. 

17 November 2016

This blog on the World Resources Institute’s (WRI) website discusses their collaboration with food multinational Mars in developing science-based sustainability targets for climate, land use, and water.

Photo credit: USDA (Flickr, creative commons licence 2.0).
9 June 2016

This paper discusses the water-energy-food nexus from a UK perspective with a focus on competing land demands.  The research, led by the Tyndall Centre for Climate Change Research, suggests that current UK policies on water, energy and food are too fragmented to effectively tackle global challenges. The paper argues that there is a need for cross-sectoral policies and for new research to focus on the nexus between sectors, scales and timeframes to address this challenge.

16 February 2016

The book provides an analysis of impacts of climate change on water for agriculture, and the adaptation strategies in water management to deal with these impacts.

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