Kai Chen
kaichenyale.bsky.social
Kai Chen
@kaichenyale.bsky.social
Associate Professor @YaleSPH @YaleDeptEHS. #Humboldtian Working on #ClimateChange, #AirPollution, and public health.
Reposted by Kai Chen
🔴 #THISISCLIMATECHANGE

🔥 Wildfires in Canada—sending smoke into the Northeast U.S.—were fueled by extreme heat, 20°F+ above average for early August.

🌡️ Meanwhile, 53M people in the U.S. Southwest & Mexico are facing extreme heat that’s nearly impossible without climate change.
🧵/6
August 7, 2025 at 5:54 PM
🔬 Using new deep learning + chem transport models, we reconstructed daily 1km NO₂ levels for 42 years.
📉 All groups saw declines, but widening relative gaps among racial groups persisted.
💡 Why care? Short-term NO₂ spikes = asthma/heart risks.
⚠️ Progress isn’t equal. Targeted interventions needed!
July 21, 2025 at 2:07 PM
Not in this study, but working on it! Would love to chat if you are interested in potentially collaboration!
July 6, 2025 at 3:12 AM