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Supertopics:
Autumn (Fall)
Pollen Allergens
Ragweed (Ambrosia species, cause of autumn hay fever)
Subtopics and Documents:
Global Warming Increasing Ragweed Pollen
hay fever from ragweed to increase with global warming
web
Richard Gray
Daily Mail
2015-05-25
climate change is increasing ragweed pollen
web
Alan Bavley
Kansas City Star
2015-02-22
Ragweed Photos
ragweed photo 01
web
2015-05-22
ragweed photo 02
web
2015-05-22
ragweed photo 03
web
ragweed photo 04
web
ragweed flowers 01
web
giant ragweed photo 02
web
worst US cities and states for allergies and asthma
climate change is increasing ragweed pollen and ozone (pdf)
web
Juan Declet-Barreto, Ph.D. and...
NRDC
2015-05-01
chamomile can intesify ragweed allergy
web
Jane E. Brody
New York Times
1995-09-06
