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Published online 12 July 2006 | Nature | doi:10.1038/news060710-7
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Sun helps clean the sky
The atmosphere's cleaning agent harnesses solar power.
We may be flooding the air with pollutants, but the 'atmospheric detergent' that mops them up is still going strong, according to research in this week's Nature1. That's because the amount of cleanser in our skies seems to depend on ultraviolet radiation coming from the Sun, rather than the amount of pollution it has to clean.
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