Energy use in the global food system
نویسندگان
چکیده
منابع مشابه
Energy use in the U.S. food system.
Energy is an important input in growing, processing, packaging, distributing, storing, preparing, serving, and disposing of food. Analysis using the two most recent U.S. benchmark input-output accounts and a national energy data system shows that in the United States, use of energy along the food chain for food purchases by or for U.S. households increased between 1997 and 2002 at more than six...
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The LUC (Land Use Change) term in an LCA assessment of a biofuel’s global warming effect (GW), while superposable for small excursions, is not independent of other events in the global food system. In particular, the GW effect of biofuel use resulting from remote land use change mediated by global grain markets is probably larger to the extent that food supplies are under pressure from whatever...
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The rate at which the Earth’s surface receives high-utility energy from the Sun is 11,000 times as great as the rate at which humans use commercial energy. Despite this, 88 percent of the commercial energy used comes from non-renewable, fossil-fuel sources. Fossil fuel use each year adds 3 percent more carbon-dioxide to the atmosphere than natural sinks can remove. The task for humans is to fin...
متن کاملEnergy and the food system
Modern agriculture is heavily dependent on fossil resources. Both direct energy use for crop management and indirect energy use for fertilizers, pesticides and machinery production have contributed to the major increases in food production seen since the 1960s. However, the relationship between energy inputs and yields is not linear. Low-energy inputs can lead to lower yields and perversely to ...
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ژورنال
عنوان ژورنال: Journal of Industrial Ecology
سال: 2020
ISSN: 1088-1980,1530-9290
DOI: 10.1111/jiec.12982