An Asian city appears in 'season 5'
Lahore, Pakistan, is always alive with life at night. But this winter's record-breaking air pollution has disrupted the city's rhythm.10 world's dirtiest cities
This is the city life. Every day people poured out tons of different kinds of waste and then lived with them. However, not all cities are dirty because of garbage.The most heavily polluted cities
Leading the list of WHO's most polluted air is India, followed by cities in Pakistan.