Robert D. Field
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Get Ready for Smokier Air: Record 2023 Wildfire Smoke Marks Long-Term Shift in North American Air Quality
A new analysis of air quality data from the past 70 years shows a broader, continent-wide trend toward smokier skies.

Congratulations to our Columbia Climate School Class of 2026 and all of our 2026 Columbia University graduates! Learn more about our May 15 Climate School Class Day celebration. 💙 #Columbia2026 #ColumbiaClimate2026
