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Climate Change Triggers Early Allergy Season in Washington

4/15/2026

48 9 Full Breakdown

Summary

Story summary

Early allergy season in Western Washington results from climate change, with seasons starting 20 days earlier and 10 days longer than 30 years ago.
The Asthma and Allergy Foundation of America reports higher pollen levels and allergenicity, especially from birch, cedar, and alder.
Tree and grass pollen form a potent allergen mix.
Experts advise limiting activity during high pollen counts and using air purifiers or apps to monitor allergen levels.

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Story summary

Early allergy season in Western Washington results from climate change, with seasons starting 20 days earlier and 10 days longer than 30 years ago.
The Asthma and Allergy Foundation of America reports higher pollen levels and allergenicity, especially from birch, cedar, and alder.
Tree and grass pollen form a potent allergen mix.
Experts advise limiting activity during high pollen counts and using air purifiers or apps to monitor allergen levels.