Showing results for: Water waste
Targetting the food-energy-water nexus, this review by FCRN members Eugene Mohareb and Martin Heller and colleagues summarises the energy implications of various types of urban agriculture. The goal of their research is to identify resource efficiency opportunities while increasing urban food production.
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.
A new green energy initiative has been launched by the Japanese meat processor NH Foods. Their Global Water Engineering (GWE) Cohral plant (in Australia)will extract green energy biogas from the waste water stream of production, replacing millions of dollars’ worth of natural gas currently consumed by the company factory. It is reported that the effect of burning the methane will save the equivalent of 12,000 tonnes of CO2, equivalent to removing 2,700 cars from the road.
This paper provides the first estimate of energy and material flows in the world’s 27 megacities (cities with over 10 million inhabitants). These megacities are home to 6.7 per cent of the world's population, but consume 9.3 per cent of global electricity and produce 12.6 per cent of global waste. The authors establish statistical relations for energy use, transport, water use, waste and so forth and factors such as average temperature, urban form, level and type of economic activity, and population growth. This allows the researchers to evaluate which cities have high versus low levels of consumption and which ones make efficient use of resources.
This article from the Urbanist takes a look at Japan’s indoor farming is portrayed. The successful indoor farming endeavor in Japan is shown through some staggering statistics: 25,000 square feet producing 10,000 heads of lettuce per day (100 times more per square foot than traditional methods) with 40% less power, 80% less food waste and 99% less water usage than outdoor fields.
In 2013 the UK’s Waste Resources Action Programme (WRAP) released the publication entitled Household Food and Drink Waste in the UK 2012 which quantified the amounts, types and reasons for food and drink being wasted from UK households. It found that the amount of avoidable household food waste in 2012 (4.2 million tonnes per year) is equivalent to six meals every week for the average UK household. Preventing this food waste could save the average family up to £700 a year and deliver significant environmental benefits through landfill avoidance and by mitigating climate change (on the basis that this ‘unnecessary’ food would not need to be produced and hence all the costs associated with its production and distribution would be avoided).
This video, prepared for the World Water Day 2012 shows the critical impact water energy and investment repercussion for both land and people. It discusses food waste and what it means in terms of water waste.
This paper finds that the water footprint of agricultural products (a definition that presumably includes non-food products) accounts for 91% of the EU’s production-related water footprint and 89% of its consumption related footpint. It argues that much more water can be saved by modifying diets and reducing food waste than through the traditional water-saving routes highlighted in mainstream awareness raising campaigns. The paper echoes others that find animal products to be particularly water intensive.
This report, entitled “Feeding a thirsty world: Challenges and opportunities for a water and food secure world”, was published by the Stockholm International Water Institute as its official input into the discussions at the 2012 World Water Week in Stockholm on August 26-31 2012.