Allergies Worsening Across Canada as Pollen Levels Double
Climate change is driving longer warm seasons and increased plant reproduction, making hay fever and hives worse for millions.
If your sinuses have been working overtime this spring, you're not imagining it. Canadian researchers monitoring pollen levels say the amount of pollen released by plants across Canada has doubled in recent years, and climate change is largely to blame.
Daniel Coates, director of Aerobiology Research Laboratories, which tracks pollen distribution nationwide, presented the data to reporters this week. "Pollen loves warm weather," Coates explained, citing research showing that longer periods of warm weather translate directly to more aggressive plant reproduction and higher pollen concentrations in the air.
The connection is straightforward: rising temperatures extend growing seasons, allowing plants to spend more time flowering and releasing pollen. Warmer winters also mean plants aren't getting the dormancy period they used to, which keeps reproduction cycles more aggressive year-round. For people with hay fever, hives, or other pollen-triggered allergies, the result is a longer, more intense allergy season.
Edmonton's location at a latitude with significant temperature swings makes the city particularly susceptible to these shifts. If you've noticed your allergies kicking in earlier or lasting longer than they used to, the data backs you up. Antihistamines, nasal sprays, and outdoor timing strategies are no longer optional for many residents—they're survival tools for spring and early summer.