Ajay, only one name given, walks his dogs in the smog-enveloped Lodhi Gardens in New Delhi, India, Friday, Nov. 15, 2024. (AP Photo/Manish Swarup)

Charu Shankar stands with her son Agastya Shankar Laul in Lodhi Gardens on a smoggy morning in New Delhi, India, Friday, Nov. 15, 2024. (AP Photo/Manish Swarup)

Anita Gahtori plays badminton with her children Sakshi, right, and Devansh in the smog-enveloped Lodhi Gardens in New Delhi, India, Friday, Nov. 15, 2024. (AP Photo/Manish Swarup)

Vanita Pathak wipes her tears as she gets emotional talking about her love for nature, in the smog-enveloped Lodhi Gardens in New Delhi, India, Friday, Nov. 15, 2024. (AP Photo/Manish Swarup)

Bashir Ahmad Mir performs morning exercises surrounded by smog in Lodhi Gardens in New Delhi, India, Friday, Nov. 15, 2024. (AP Photo/Manish Swarup)

Rajiv Gupta pets a dog with his wife Manisha Gupta seated beside him in the smog-enveloped Lodhi Gardens in New Delhi, India, Friday, Nov. 15, 2024. (AP Photo/Manish Swarup)

Rajiv Sikri, left, and Subodh Jain take a morning walk in Lodhi Gardens in New Delhi, India, Friday, Nov. 15, 2024. (AP Photo/Manish Swarup)

People pose for a photo with the Baku Olympic Stadium in the background at the COP29 U.N. Climate Summit, Thursday, Nov. 14, 2024, in Baku, Azerbaijan. (AP Photo/Peter Dejong)