Find yourself sneezing more often than usual? Pollen seasons are 20 days longer, present 21% more pollen, and start around 20 days earlier than in 1990. Climate change alone could account for around half of the pollen season lengthening and around 8 percent of the pollen amount increasing. The contribution of climate change to increasing pollen amounts has been found to be accelerating, with the greatest increases recorded in Texas and the Midwestern U.S., and more among tree pollen than other plants.
www.publichealth.columbia.edu/public-health-now/news/allergy-seasons-are-worsening-and-climate-change-playing-significant-role