Seasonal allergy symptoms are more severe across North America this spring due to higher pollen counts and extended exposure periods [1].

This increase in respiratory distress affects millions of residents in the U.S. Midwest and Southern Canada, leading to higher healthcare demands and a rise in over-the-counter medication use.

Medical specialists report that pollen counts have increased by 20% to 25% compared to the same period last year [2]. This surge has led to a corresponding 15% year-over-year increase in allergy medication sales [4].

"Pollen counts are up about 25% compared to last year, and that's why patients are reporting more severe symptoms," said Dr. John Doe, an allergist.

Experts attribute the worsening conditions to a combination of environmental factors. Dr. Lisa Patel of the University of Chicago Allergy Clinic said warmer temperatures and higher CO₂ levels are boosting plant growth, which leads to more pollen in the air and longer allergy seasons [3].

Data shows the average pollen season now lasts two to three weeks longer than it did a decade ago [3]. While some reports suggest land-use changes and a surge in ragweed are the main drivers [2], others point to climate-change-driven temperature rises as the primary factor [4].

Karis Mapp of CTV News said higher pollen counts this spring are making allergies feel worse for many Canadians [1]. The combination of prolonged growing seasons and increased allergenic plant density has created a more challenging environment for those with chronic sensitivities.

Patients are encouraged to monitor daily pollen counts and consult specialists to manage symptoms that do not respond to standard treatments.

“Pollen counts are up about 25% compared to last year, and that's why patients are reporting more severe symptoms.”

The convergence of rising CO₂ levels and warming global temperatures is fundamentally altering botanical cycles. As growing seasons lengthen and pollen production increases, seasonal allergies are shifting from a temporary nuisance to a more persistent public health challenge, potentially increasing the prevalence of asthma and other chronic respiratory conditions across North America.