Google says white-background does’t waste more energy than a black one
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Not to be outdone in the “green” category, Google says that the white background on its home page doesn’t use more energy than a black background would.
The research he has found suggests that LCDs, which are the most common type of monitor, typically consume only slightly less or in some cases slightly more energy when displaying black screens. The biggest energy savings from black screens appears to come from CRT (cathode ray tube) displays, which are common in some places of the world but overall make up about a quarter of computer screens, he said.
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