Early and Extended Allergy Season: What You Need to Know.

Pollen allergy season has arrived earlier than usual this year and is expected to last longer due to climate change, according to a study published in Nature Communications. Rising global temperatures are causing trees, weeds, and grasses to produce pollen earlier, longer, and more intensely. The annual pollen count could increase by 40% to 200% above baseline by the year 2100. The study's findings suggest that pollen-induced respiratory allergies are getting worse with climate change, and could have corresponding health effects.