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http://explainingclimatechange.com/lesson9/9_2_1.html

1.     Question: LED (light emitting diode) technology is quickly becoming a commercially viable lighting option. An LED only uses 6-8 W of power to produce the same amount of light produced by a 60 W incandescent bulb. If a building used LED lighting instead of incandescent lighting, how would this affect the building’s carbon footprint?