Hanoi and Ho Chi Minh City rank among the world’s most polluted cities. The millions of petrol motorbikes are huge ...

Dhaka, the densely populated capital of Bangladesh, ranked first among the world’s most polluted cities on Thursday morning, ...

Tehran’s rapidly worsening air pollution has reached life-threatening levels, prompting Iran’s vice president to caution on Friday that the smog “will kill” as schools and universities across the ...

HANOI, Vietnam — Hanoi has no horizon. Blocky apartment towers dissolve into gray fog in the Vietnamese capital, as barges carrying sand inch down the Red River toward makeshift jetties. At street ...

LAGOS, Nigeria (AP) — Nigerian shop manager Olarewanju Ogunbona says he uses Styrofoam and plastic packs at least five times a day — nothing unusual in the megacity of Lagos, one of the world's most ...

Toxic smog has become Bangkok’s annual public-health emergency during colder months. Read more at straitstimes.com. Read more ...

Dhaka, the densely populated capital of Bangladesh, ranked second among the world’s most polluted cities on Monday morning, ...