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Global warming boosts ragweed pollen production findings
Government research shows ragweed pollen doubles with rising carbon dioxide levels, signaling greater hay fever risk. USDA lab data from 1998 and 1999 indicate pollen per plant rising from 5.5 grams to 10 grams, with 20 grams expected by 2100. Harvard and Columbia scientists note climate links, while doctors warn individual sensitivity varies.
MENTIONED IN THIS ARTICLE
Washington
Agriculture Department
Agriculture
Dan Glickman
Midwest
USDA
World Resource Review
Harvard University
Cynthia Rosenzweig
Columbia University
Center For Climate Systems Research