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 .S. Commercial Sector Carbon Emissions by End-Use.
Figure 2 summarizes carbon emissions by end-use in 1990
for the commercial sector. The top seven end-uses account for about three-quarters
of base year residential and commercial sector carbon emissions. In the
commercial sector, lighting is by far the largest source of carbon emissions,
followed far behind by electric cooling, miscellaneous electricity, natural
gas heating, miscellaneous natural gas, electric water heating, and ventilation.
Lighting alone is responsible for more than one-quarter of base year commercial
sector emissions. |
