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Lighting accounts for approximately 17% of all electricity sold in the United States. By saving energy, energy-efficient lighting in turn prevents air pollution caused by electricity generation. If energy-efficient lighting was installed everywhere it was profitable, the US EPA estimates that electric use for lighting would be cut by 10% and the following annual pollution reductions would result:
Reduce annual
carbon dioxide emissions by 202 million metric tons which is the equivalent
of taking 15 million cars off the road.
Reduce more
than 1.3 million metric tons of sulfur dioxide, which contributes to acid
rain.
Reduce 600,000 metric tons of nitrogen oxides, which contribute to smog.
