11 found
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  1.  59
    Tiziano Gomiero, Maurizio G. Paoletti & David Pimentel (2010). Biofuels: Efficiency, Ethics, and Limits to Human Appropriation of Ecosystem Services. [REVIEW] Journal of Agricultural and Environmental Ethics 23 (5):403-434.
    Biofuels have lately been indicated as a promising source of cheap and sustainable energy. In this paper we argue that some important ethical and environmental issues have also to be addressed: (1) the conflict between biofuels production and global food security, particularly in developing countries, and (2) the limits of the Human Appropriation of ecosystem services and Net Primary Productivity. We warn that large scale conversion of crops, grasslands, natural and semi-natural ecosystem, (such as the conversion of grasslands to cellulosic (...)
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  2. David Pimentel & Marcia Pimentel (2003). World Population, Food, Natural Resources, and Survival. World Futures 59 (3 & 4):145 – 167.
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  3.  65
    Maurizio G. Paoletti & David Pimentel (2000). Environmental Risks of Pesticides Versus Genetic Engineering for Agricultural Pest Control. Journal of Agricultural and Environmental Ethics 12 (3):279-303.
    Despite the application of 2.5 million tons ofpesticides worldwide, more than 40% of all potentialfood production is lost to insect, weed, and plantpathogen pests prior to harvest. After harvest, anadditional 20% of food is lost to another group ofpests. The use of pesticides for pest control resultsin an estimated 26 million human poisonings, with220,000 fatalities, annually worldwide. In the UnitedStates, the environmental and public health costs forthe recommended use of pesticides total approximately$9 billion/yr. Thus, there is a need for alternativenon-chemical (...)
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  4.  36
    David Pimentel (1991). Ethanol Fuels: Energy Security, Economics, and the Environment. [REVIEW] Journal of Agricultural and Environmental Ethics 4 (1):1-13.
    Problems of fuel ethanol production have been the subject of numerous reports, including this analysis. The conclusions are that ethanol: does not improve U.S. energy security; is uneconomical; is not a renewable energy source; and increases environmental degradation. Ethanol production is wasteful of energy resources and does not increase energy security. Considerably more energy, much of it high- grade fossil fuels, is required to produce ethanol than is available in the energy output. About 72% more energy is used to produce (...)
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  5.  85
    David Pimentel (1995). Amounts of Pesticides Reaching Target Pests: Environmental Impacts and Ethics. [REVIEW] Journal of Agricultural and Environmental Ethics 8 (1):17-29.
    Less than 0.1% of pesticides applied for pest control reach their target pests. Thus, more than 99.9% of pesticides used move into the environment where they adversely affect public health and beneficial biota, and contaminate soil, water, and the atmosphere of the ecosystem. Improved pesticide application technologies can improve pesticide use efficiency and protect public health and the environment.
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  6.  23
    David Pimentel (1993). Economics and Energetics of Organic and Conventional Farming. Journal of Agricultural and Environmental Ethics 6 (1):53-60.
    The use of organic farming technologies has certain advantages in some situations and for certain crops such as maize; however, with other crops such as vegetables and fruits, yields under organic production may be substantially reduced compared with conventional production. In most cases, the use of organic technologies requires higher labor inputs than conventional technologies. Some major advantages of organic production are the conservation of soil and water resources and the effective recycling of livestock wastes when they are available.
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  7.  8
    David Pimentel, Roland E. Shanks & Jason C. Rylander (1996). Bioethics of Fish Production: Energy and the Environment. [REVIEW] Journal of Agricultural and Environmental Ethics 9 (2):144-164.
    Aquatic ecosystems are vital to the structure and function of all environments on earth. Worldwide, approximately 95 million metric tons of fishery products are harvested from marine and freshwater habitats. A major problem in fisheries around the world is the bioethics of overfishing. A wide range of management techniques exists for fishery, managers and policy-makers to improve fishery production in the future. The best approach to limit overfishing is to have an effective, federally regulated fishery, based on environmental standards and (...)
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  8.  30
    David Pimentel (1990). Environmental and Social Implications of Waste in U.S. Agriculture and Food Sectors. Journal of Agricultural and Environmental Ethics 3 (1):5-20.
    Because the agriculture/food sectors appear to be driven by short-term economic and political forces, cheap energy, and agricultural-chemical technologies, waste and environmental/social problems in the agricultural/food sectors are estimated to cost the nation at least $150 billion per year. Most of the waste and environmental/social problems can be eliminated through better resource management policies and the adoption of sustainable agricultural practices.
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  9.  14
    Antonia Demas, Dana Kindermann & David Pimentel (2010). School Meals: A Nutritional and Environmental Perspective. Perspectives in Biology and Medicine 53 (2):249-256.
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  10.  3
    David Pimentel (1999). Population Growth, Environmental Resources and the Global Availability of Food. Social Research 66.
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  11. David Pimentel (1990). Environmental and Social Implications of Waste in U.S. Agriculture and Food Sectors. Journal of Agricultural Ethics 3 (1):5-20.
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