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Posted Fri Oct 22 2010: from
Reuters:
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Plants clean air pollution better than expected http://apocadocs.com/s.pl?1287778138
Plants, especially some trees under stress, are even better than expected at scrubbing certain chemical pollutants out of the air, researchers reported on Thursday.
"Plants clean our air to a greater extent than we had realized," Thomas Karl of the U.S. National Center for Atmospheric Research, a federally funded research center based in Boulder, Colorado, said in a statement. "They actively consume certain types of air pollution."
Scientists have long known that plants take in carbon dioxide, a naturally occurring gas that can build up in the atmosphere and trap heat beneath it. But they did not know that some plants excel at sucking up a class of chemicals known as oxygenated volatile organic compounds, or oVOCs.
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[Read more stories about:
carbon sinks, climate impacts]
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