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Pollen Counts Rise with Increasing Carbon Dioxide
Pollen production from ragweed grown in chambers at the carbon dioxide concentration of a century ago (about 280 parts per million, ppm) was about 5 grams per plant; at today’s approximate carbon dioxide level, it was about 10 grams; and at a level projected to occur about 2075 under the higher emissions scenario,1 it was about 20 grams.2 Image Reference: Ziska and Caufield2
References
- 1. [91] various. footnote 91., 2009.
- 2. a. b. [307] Ziska, L. H., and F. A. Caulfield. "Rising CO2 and Pollen Production of Common Ragweed (Ambrosia Artemisiifolia L.), A Known Allergy-inducing Species: Implications for Public Health." Australian Journal of Plant Physiology 27, no. 10 (2000): 893-898.
Summary
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