Affiner votre recherche
Résultats 111-120 de 6,038
Demanding clean food and water
1990
Goldstein, Joan
From Publishers Weekly: "For a generation that has grown up since the publication of Rachel Carson's Silent Spring , here is timely and important information about pesticide residue in food and water. Goldstein (The Politics of Offshore Oil) examines the use of pesticides on produce and the potential health effects, reviews the changes in agriculture and the proliferation of pesticides following WW II, and discusses regulation, risk assessment and tolerance of pesticides, noting that the latter is based on adult intake (cause for alarm, as children eat more fruit than do adults). Because pesticides are tested only for their active ingredients, Goldstein argues that the inert ingredients should be tested as well; she scrutinizes the Clean Water Act and describes groundwater contamination. The final chapter of this valuable consumer handbook offers alternate approaches to pest control."
Afficher plus [+] Moins [-]Women, water and food technology
1990
Anokwa, C. (University of Ghana, Legon (Ghana). Home Science Dept.)
The need for provision of adequate water supply for both domestic cooking and industrial food technology use, especially for small scale food processing industries are discussed. The in-adequacy of water results in unhygienic and burdensome preparation and processing activities. In addition, the new appropriate technologies have worsened water-related problems and improved technologies are not optimally serving small-scale food processors, most of whom are women. In designing and installing these improved technologies for operation, the scope must be increased to cover water management as well as fuel saving as part of a comprehensive local programme for health and welfare improvement
Afficher plus [+] Moins [-]Valuing water for food security : How valuing water can contribute to optimal food security policy Texte intégral
2022
Reinhard, Stijn | Wilbers, Gert-Jan | Linderhof, Vincent | Smit, Robert
Research into the potential of valuing water for food security policies. The Food and Water Valuation Framework (FWVF) has been developed to combine the valuing water concept with the food system approach. This framework is applied in four case studies to assess its advantage over existing concepts. | Onderzoek naar de mogelijkheden van het waarderen van water voor voedselzekerheidsbeleid. Het Food and Water Valuation Framework (FWVF) is ontwikkeld om het waterwaarderingsconcept te combineren met de voedselsysteembenadering. Dit kader wordt toegepast in vier casestudies om het voordeel ervan ten opzichte van bestaande concepten te beoordelen.
Afficher plus [+] Moins [-]Does food trade save water?: the potential role of food trade in water scarcity mitigation Texte intégral
2007
International Water Management Institute (IWMI).
This Water Policy Briefing is based on the CA Research Report 4: Does International Cereal Trade Save Water? The Impact of Virtual Water Trade on Global Water Use (CA Research Report 4) by Charlotte de Fraiture, Ximing Cai, Upali Amarasinghe, Mark Rosegrant and David Molden; and on Investing in Water for Food, Ecosystems and Livelihoods (BLUE PAPER, Stockholm 2004, Discussion Draft) by David Molden and Charlotte de Fraiture; and on Is Virtual Water Trade a Solution for Water Scarce Countries? by Charlotte de Fraiture and David Molden, Bridges 2004. By the year 2050 there will be an additional 3 billion people to feed. Food production may need to increase by 70-90 percent from levels in 2000 to meet this global food demand. Without improvements in the efficiency and productivity of agricultural water use, crop water consumption would have to grow by the same order of magnitude. A big challenge in water management is to grow sufficient food for a growing and more affluent population while meeting the many other demands on limited water resources—household needs, industrial requirements and environmental functions. Already, an estimated 20% of the global population lives in river basins that are characterized by physical water scarcity. International food trade can have significant impacts on national water demand. The term ‘virtual water’, first introduced by Allan (1998), refers to the volume of water used to produce traded crops. By importing food a country ‘saves’ the amount of water it would have required to produce it on its own soil. Thus, international food trade can have important mpacts on how and where water is used. Food trade reduces water use at two levels. At a national level, a country reduces water use by importing food rather than producing it. At a global level, trade reduces water use because, at present, production in exporting countries is more water efficient than in importing countries. Moreover, four of the five major grain exporters produce under highly productive rainfed conditions while importing countries would have relied more on irrigation. In fact, without cereal trade, global irrigation water demand would have been higher by 11%. Some researchers have suggested that international food trade can and should be used as an active policy instrument to mitigate local and regional water scarcity. They contend that, instead of striving for food self-sufficiency, water short countries should import food from water abundant countries. Indeed, food trade has a large potential to alleviate water scarcity, but in practice there are many reasons why this is unlikely to happen in the near future.
Afficher plus [+] Moins [-]Does food trade save water?: the potential role of food trade in water scarcity mitigation Texte intégral
Wasted food, lost water: ethical imperatives for water conservation Texte intégral
2009
de Fraiture, Charlotte | Clayton, Terry
Wasted food, lost water: ethical imperatives for water conservation
2009
Fraiture, Charlotte de | Clayton, Terry
[Drinking water and industrial water supplies for food factories]
1976
Strauch, D. (Hohenheim Univ. (Germany, F.R.))
Contaminated waste sites, property, and your health
1988
Lappenbusch, William L.
Food-energy-water nexus: Food waste recycling system for energy Texte intégral
2022
Siaw, Mathew Nana Kyei | Oduro-Koranteng, Elizabeth Ayaw | Dartey, Yaw Obeng Okofo
Food-energy-water nexus: Food waste recycling system for energy Texte intégral
2022
Siaw, Mathew Nana Kyei | Oduro-Koranteng, Elizabeth Ayaw | Dartey, Yaw Obeng Okofo
A humongous amount of food goes to waste yearly. The use of renewable energy sources is encouraged to reduce global warming. Food waste as a source of energy and water as a food-water-energy nexus has shown to be a viable source of renewable energy. This paper proposes a food waste recycling system that uses a mechanical presser to the extraction of moisture from the food waste with its desiccate being fed to an anaerobic digester to produce biogas. Literature on the topic is reviewed and the benefits and limitations of the system are also discussed.
Afficher plus [+] Moins [-]Food-energy-water nexus: Food waste recycling system for energy Texte intégral
2022
Mathew Nana Kyei Siaw | Elizabeth Ayaw Oduro-Koranteng | Yaw Obeng Okofo Dartey
A humongous amount of food goes to waste yearly. The use of renewable energy sources is encouraged to reduce global warming. Food waste as a source of energy and water as a food-water-energy nexus has shown to be a viable source of renewable energy. This paper proposes a food waste recycling system that uses a mechanical presser to the extraction of moisture from the food waste with its desiccate being fed to an anaerobic digester to produce biogas. Literature on the topic is reviewed and the benefits and limitations of the system are also discussed.
Afficher plus [+] Moins [-]