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I am always amazed every time I drive through the city an night to see so many lights left on in buildings....even on weekends. Maybe someone should show them where the switch is! If buildings were heavily fined for leaving lights on (or increase the tariff to 10 times the daytime usage) I think that would make a bigger reduction in greenhouse gasses than many of the things individuals could do.
Where I work, I arrive around 7am every morning and am usually the person who unlocks for the day. Until I arrive, our complete building is in darkness with the exception of a couple of emergency exit lights.
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