Physician assistant student Madison Jessen poses for a picture after the white coat ceremony at Weill Cornell Medicine, Tuesday, Aug. 18, 2026, in New York. (AP Photo/Yuki Iwamura)

Physician assistant student Chloe Frabotta shakes hand with faculty members on stage during white coat ceremony at Weill Cornell Medicine, Tuesday, Aug. 18, 2026, in New York. (AP Photo/Yuki Iwamura)

Physician assistant student Chloe Frabotta poses for a picture after the white coat ceremony at Weill Cornell Medicine, Tuesday, Aug. 18, 2026, in New York. (AP Photo/Yuki Iwamura)

FILE - People light firecrackers to celebrate Diwali, the festival of lights, in Ahmedabad, India, Oct. 20, 2025. (AP Photo/Ajit Solanki, File)

Traffic moves through evening smog in New Delhi, India, as air quality across the capital region deteriorates ahead of winter, Friday, Nov. 6, 2026. (AP Photo/Manish Swarup)

A worker sweeps the area outside a construction site as authorities use water sprinklers to curb air pollution in New Delhi, India, Friday, Nov. 6, 2026. (AP Photo/Manish Swarup)

FILE - A student wears a face mask while crossing a foot over bridge amidst morning smog in New Delhi, India, Nov. 18, 2025. (AP Photo/Manish Swarup, File)

An elderly woman uses an air purifier inside her room amid deteriorating air quality in New Delhi, India, Friday, Nov. 6, 2026. (AP Photo/Manish Swarup)