Climate Change Linked to Month-Longer Pollen Season

(USA Today) UPDATED 2011-02-24
If it seems like allergy season is longer these days than it was in years past, you may not be wrong, allergy experts say. That's because global climate change appears to be lengthening North America's ragweed pollen season. A study by 20 researchers found that ragweed season is nearly a month longer now than it was in 1995. They also found a correlation between latitude and the length of the season, with Northern towns reporting the most extended pollen season.
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