Islamabad, Pakistan CNN —A smog-choked province in eastern Pakistan has issued a rare plea for cross-border collaboration with India, as major cities in both countries endure severe air pollution that risks the health of millions. “We are suffering in Lahore in a way due to the eastern wind corridor coming from India,” he said. Lahore, home to more than 14 million people, saw its air quality index surpass a record 1,900 in one part of the city on Saturday, according to IQAir, which tracks global air quality. Experts say India’s air pollution is so bad that smog could take years off the lives of hundreds of millions of people. Both India and Pakistan have tried to clamp down on the practice, but it is still widespread.

---

Persons: Raja Jahangir Anwar, ” Anwar, Punjab’s, ”, Arif Ali, Sakib Ali, Maryam Nawaz, Parveen Kumar Organizations: Pakistan CNN, Environment, CNN, Getty, Hindustan Times, World Health Organization, Experts, India’s Locations: Islamabad, Pakistan, India, Punjab, Pakistan’s, Lahore, AFP, Delhi Meerut, Ghaziabad, Delhi –, Gurgaon, India’s Punjab, Haryana, Pakistan’s Punjab