- Pacific
Food waste contributes to excess consumption of freshwater and fossil fuels which, along with methane and CO2 emissions from decomposing food, impacts global climate change. Here, we calculate the energy content of nationwide food waste from the difference between the US food supply and the food consumed by the population. The latter was estimated using a validated mathematical model of metabolism relating body weight to the amount of food eaten. We found that US per capita food waste has progressively increased by ~50% since 1974 reaching more than 1400 kcal per person per day or 150 trillion kcal per year. Food waste now accounts for more than one quarter of the total freshwater consumption and ~300 million barrels of oil per year.
Citation: Hall KD, Guo J, Dore M, Chow CC (2009) The Progressive Increase of Food Waste in America and Its Environmental Impact. PLoS ONE 4(11): e7940. doi:10.1371/journal.pone.0007940
Editor: Thorkild I. A. Sorensen, Institute of Preventive Medicine, Denmark
Received: September 8, 2009; Accepted: October 26, 2009; Published: November 25, 2009
This is an open-access article distributed under the terms of the Creative Commons Public Domain declaration which stipulates that, once placed in the public domain, this work may be freely reproduced, distributed, transmitted, modified, built upon, or otherwise used by anyone for any lawful purpose.
Funding: This research was supported by the Intramural Research Program of the National Institutes of Health, National Institute of Diabetes and Digestive and Kidney Diseases. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.
Competing interests: The authors have declared that no competing interests exist.
* E-mail: kevinh@niddk.nih.gov (KDH); carsonc@niddk.nih.gov (CCC) http://www.plosone.org/article/info:doi/10.1371/journal.pone.0007940
"To Achieve World
Government it is necessary to remove from the minds of men their individualism,
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"A society whose citizens refuse to see and investigate the facts, who refuse to
believe that their government and their media will routinely lie to them and fabricate a
reality contrary to verifiable facts, is a society that chooses and deserves the Police
State Dictatorship it's going to
get." Ian Williams Goddard
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