FILE - People walk through smog in New Delhi, India, Dec. 15, 2025. (AP Photo/Piyush Nagpal, File)
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FILE -California Gov. Gavin Newsom speaks at a session at the We Mean Business Pavilion during the COP30 U.N. Climate Summit, Tuesday, Nov. 11, 2025, in Belem, Brazil. (AP Photo/Fernando Llano, File)
People walk in a smog-covered morning in New Delhi, India, Monday, Dec. 15, 2025. (AP Photo/Piyush Nagpal)
Traffic moves through dense smog in the morning in New Delhi, India, Monday, Dec. 15, 2025. (AP Photo)
People walk through a public park in a dense smog-covered morning in New Delhi, India, Monday, Dec. 15, 2025. (AP Photo)
A man pushes a cycle cart in a smog-covered morning in New Delhi, India, Monday, Dec. 15, 2025. (AP Photo/Piyush Nagpal)
FILE - Oil platforms are visible through the haze near the Flower Garden Banks National Marine Sanctuary in the Gulf of Mexico, off the coast of Galveston, Texas, Saturday, Sept. 16, 2023. (AP Photo/LM Otero, File)
FILE - The Gibson Power Plant operates April 10, 2025, in Princeton, Ind. (AP Photo/Joshua A. Bickel, File)
A girl looks out the window at the Amazon Pearl community farming project on the outskirts of Puerto Asis, Colombia, Wednesday, Nov. 26, 2025. (AP Photo/Ivan Valencia)
Jani Silva, 63, sails in a boat on the Putumayo River, on the outskirts of Puerto Asis, Colombia, Wednesday, Nov. 26, 2025. (AP Photo/Ivan Valencia)