The pollen season is growing longer and more intense due to climate change, affecting allergy sufferers nationwide. A report by the Asthma and Allergy Foundation analyzed pollen levels and medication use in the 100 most-populated U.S. cities, revealing that some areas, like Florida, experience significant year-round allergies. Notably, cities such as Jacksonville have been identified among the top 20 allergy capitals, which reflects the increasing burden on asthma and allergy sufferers attributed to changing climate conditions.
According to the 2025 Asthma and Allergy Foundation report, allergy seasons have lengthened and intensified due to climate change, impacting various U.S. regions notably.
People may experience seasonal or year-round allergies, with climate change exacerbating pollen levels and allergy symptoms prevalent especially in the southern and eastern U.S.
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