In our roundup of travel news this week: the world’s top 100 cities for 2025, the world’s best hotels, the world’s tallest hotel, the world’s longest, deepest, undersea rail tunnel, plus two new ...

Many people still burn trash, ride old motorbikes, and use charcoal stoves, and they treat Hanoi's air pollution as someone else's problem.

New Delhi, India – Under a thick blanket of smog in the world’s most polluted city, the leaders of Russia and India put on a ...

Anxiety is rising, panic-like symptoms are sharpening, and mental well-being is fraying under the weight of poisoned skies ...

Schools are closing and hospitals are admitting patients suffering from lung diseases as Tehran and other Iranian cities face ...

Sarajevo, the capital of Bosnia and Herzegovina, is today shrouded in smog and is at the top of the list of the world’s most ...

Indians breathe some of the world’s most toxic air, and studies suggest it’s killing millions of them. Air pollution in New ...

The severity of the crisis has left Tehran, home to more than 15 million residents, the world's most polluted city. Tehran ...

The capital of Indonesia surpassed Tokyo as the world’s most populous city after the United Nations overhauled how it ...

Delhi emerges as India's most polluted region, with PM2.5 levels a staggering 20 times the WHO guideline. A new satellite ...

Delhi has once again emerged as India’s most polluted region, topping a new satellite-based assessment of air quality across 33 states and Union territories.  According to the analysis by the Centre ...

The researchers took into account satellite and ground data to map population-weighted PM2.5 across districts, states and ...