Why your hay fever symptoms are getting worse
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Climate change is worsening hay fever symptoms in the US by extending pollen seasons and increasing pollen potency. Over one in four US adults suffer from seasonal allergies, experiencing more severe symptoms due to climate-driven changes.
Climate change is intensifying hay fever symptoms for many people in the US. Rising temperatures and increased carbon dioxide levels are causing plants to produce more pollen, and for longer periods. This leads to more severe allergy symptoms, including sneezing, congestion, and itchy eyes. The Centers for Disease Control and Prevention advises sufferers to check daily pollen forecasts and limit outdoor activity on high-pollen days. Over 25% of US adults have seasonal allergies, and the prevalence of hay fever and asthma has risen significantly in recent decades. Climate-driven changes are also contributing to worsening air pollution, further amplifying allergic responses.
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