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Pollen Production—and Allergies—may Rise Significantly Over Next 50 Years

Date:
March 22, 2002
Source:
Harvard Medical School
Summary:
Rising carbon dioxide levels associated with global warming could lead to an increase in the incidence of allergies to ragweed and other plants by mid-century, according to a report appearing in the March Annals of Allergy, Asthma, and Immunology by Harvard University researchers. The study found that ragweed grown in an atmosphere with double the current carbon dioxide levels produced 61 percent more pollen than normal. Such a doubling of atmospheric carbon dioxide is expected to occur between 2050 and 2100.

Boston, MA -- Rising carbon dioxide levels associated with global warming could lead to an increase in the incidence of allergies to ragweed and other plants by mid-century, according to a report appearing in the March Annals of Allergy, Asthma, and Immunology by Harvard University researchers. The study found that ragweed grown in an atmosphere with double the current carbon dioxide levels produced 61 percent more pollen than normal. Such a doubling of atmospheric carbon dioxide is expected to occur between 2050 and 2100.


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The above story is based on materials provided by Harvard Medical School. Note: Materials may be edited for content and length.


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Harvard Medical School. "Pollen Production—and Allergies—may Rise Significantly Over Next 50 Years." ScienceDaily. ScienceDaily, 22 March 2002. <www.sciencedaily.com/releases/2002/03/020322075343.htm>.
Harvard Medical School. (2002, March 22). Pollen Production—and Allergies—may Rise Significantly Over Next 50 Years. ScienceDaily. Retrieved April 17, 2014 from www.sciencedaily.com/releases/2002/03/020322075343.htm
Harvard Medical School. "Pollen Production—and Allergies—may Rise Significantly Over Next 50 Years." ScienceDaily. www.sciencedaily.com/releases/2002/03/020322075343.htm (accessed April 17, 2014).

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