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• $120 billion in theU.S.in 2005 – primarily health damages from air pollution associated with electricity generation and motor vehicle transportation
• Non-climate damages 1-3¢/kWhr
• Climate damages 0.1-10¢/kWhr
• 20,000 Deaths/year, half due to coal
Does not include damages from climate change, harm to ecosystems, effects of some air pollutants such as mercury, and risks to national security, which the report examines but does not monetize.
". . . for every kilowatt-hour of electricity used by information and communications technologies, the US saves at least 10 times that amount, the new ACEEE report found."
Mark Clayton, "Internet helps Americans save more energy every year," Christian Science Monitor, February 13, 2008, Available: http://www.csmonitor.com/2008/0213/p04s01-usgn.html. Accessed: Jan. 25, 2009.
Baliga et al. estimate the internet uses 1% of broadband connected countries' electricity with optical networks providing the most energy efficient access.
Data centers and cloud computing can consume much energy:
Google's Dalles, OR server farm could consume over 100 MW by 2011 to power billions of CPU cycles and provide cooling. Ginger Strand, "Keyword: Evil," Harper's Magazine, March 2008, p. 64-65, http://harpers.org/media/slideshow/annot/2008-03/index.html
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