Does Daylight Saving Time Really Save Energy?
So why have we decided to extend Daylight Saving Time (DST) by a month in 2007? The stated goal is to cut electricity consumption by 1%. General consensus has it that a large percentage of energy is consumed by lighting and appliances when people are at home in the evenings. By extending evening daylight an hour, one can conclude that less lighting will be used and people will spend more time outdoors thus saving electricity. What kind of evidence do we have to support this common knowledge? Well, not much. The last major study done in the U.S. was conducted in the 1970"s and based its conclusions largely on simulations rather than any empirical evidence. ...
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