“In the United States, the buildings sector accounted for about 41% of primary energy consumption in 2010, 44% more than the transportation sector and 36% more than the industrial sector.”
DOE. Buildings Energy Data Book. US DOE Office of Energy Efficiency and Renewable Energy, 2011.
Available from www.buildingsdatabook.eren.doe.gov
"Radiative forcing is a concept used for quantitative comparisons of the strength of different human and natural agents in causing climate change. ... The combined anthropogenic Radiative forcing...[indicates] that, since 1750, it is extremely likely that humans have exerted a substantial warming influence on climate."
p.131Forster, P., V. Ramawamy, P. Artaxo, T. Berntsen, R. Betts, D.W. Fahey, J. Haywood, and J. Lean.
"Changes in atmospheric constituents and in radiative forcing."
In Climate Change 2007: The Physical Science Basis, ed. Susan Solomon, 129-234. Cambridge; New York: Cambridge University Press, 2007. www.ipcc.ch