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Did You Know?

Average expenditures on food as a percentage of income range from 14% in developed countries to 30% in developing countries in 2021. On average, Americans spend 7%, while Nigerians spend 59%.

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Life Cycle Optimization for Residential Air Conditioning Replacement

Dec 1, 2008 -
Nov 30, 2009
The electricity consumed by central air conditioners (CACs) currently accounts for 14% of residential electrical use in the United States (DOE, 2001).  Population growth in the south (Census Bure...

Life Cycle Optimization of Household Refrigerator-Freezer Replacement

Sep 1, 2003 -
Aug 30, 2004
Average energy consumption of new refrigerators sold in the U.S. decreased by approximately 60 percent between 1980 and 2002. Despite the dramatic energy efficiency improvements driven by energy st...
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Center for Sustainable Systems

3012 Dana Building
440 Church Street
Ann Arbor, MI 48109-1041
Phone: (734) 764-1412 [email protected]

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