allergies
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Allergy Seasons Are Worsening and Climate Change Is Playing a Significant Role
Pollen seasons are 20 days longer and present 21 percent more pollen than in 1990, according to a new study.
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Nothing to Sneeze At: How Climate Change Could Make Your Allergies Worse
As the world warms, plants may benefit but pollen allergies will likely get worse.
COP31, the 2026 United Nations Climate Change Conference, aims to advance dialogue, strengthen consensus, and accelerate climate action on a global scale. From November 9–20, 2026 in Antalya, Türkiye, heads of state, ministers, scientists, business leaders, and civil society will gather to advance efforts in emission targets, climate finance, and adaptation and resilience. Once again, our experts, students, and global thought leaders from Columbia Climate School and across Columbia University are contributing to key events, sharing insights, and helping shape the dialogue toward ambitious, science-based solutions. Learn More
