For many, the arrival of spring brings more than just warmer weather. It also brings a familiar foe: seasonal allergies. These allergies often start with symptoms that mimic a common cold, leading many to seek medical help. The usual suspects are tree pollen, which can trigger sneezing, watery eyes, and other discomforts. This year, however, the allergy season has been particularly tricky.

Climate change has extended the allergy season, making it longer and more intense. Pollen seasons have expanded by about 20 days on average since 1990, and pollen concentrations have increased by 21 percent. This means that allergy sufferers might start feeling symptoms even before the snow melts. The pollen that affects New England often travels from the Southeast, riding the jet stream northward. This early pollen can start causing issues as early as February, long before local trees begin to bloom.

Carbon dioxide, a byproduct of human activities, plays a significant role in worsening allergies. Increased CO2 levels supercharge plants to produce more pollen, making allergy seasons not only longer but also more intense. This is a clear marker of accelerating climate change and its impact on our health.

In New England, tree pollens are the primary culprits during spring. Trees like juniper, oak, and birch are known for producing potent pollens that can cause significant symptoms. Despite the longer allergy season, some cities in New England are ranked as "better than average" places to live with seasonal allergies. However, for those highly allergic to certain tree pollens, even an average year can feel miserable.

To manage allergies, experts recommend starting nasal steroid sprays a month ahead of the season. This proactive approach can help control symptoms before they become unbearable. Additionally, there are many free apps and resources, like the National Allergy Bureau, that provide real-time pollen counts to help allergy sufferers plan their days better.

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