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Has Beijing's air quality improved?

దిల్లీలో కాలుష్యానికి ఇది పరిష్కారమా? Video, 00:01:11దిల్లీలో కాలుష్యానికి ఇది పరిష్కారమా?

Delhi trials smog-blasting cannon. Video, 00:01:04Delhi trials smog-blasting cannon

Delhi's smog-blasting cannon. Video, 00:01:04Delhi's smog-blasting cannon

Clean bus zones: Not sexy but effective

Plan to drop toll for electric cars

Babies' brains 'damaged by pollution'

NI site 'breached air pollution target'

Air pollution 'failure' court date set

Sri Lankans 'right' to take stand on smog

New Sentinel satellite tracks dirty air

Thousands run in Delhi 'smogathon' Video, 00:00:49Thousands run in Delhi 'smogathon'

Bosnia's silent killer: The coal industry. Video, 00:02:05Bosnia's silent killer: The coal industry

Why the Delhi sun rises on smog. The World This Week. Audio, 00:02:23Why the Delhi sun rises on smog

Reasons for 'dash for diesel' revealed

Delhi anti-pollution measures lifted

'Air quality is worse inside your car' Video, 00:01:27'Air quality is worse inside your car'

Bosnia's silent killer: The coal industry. Video, 00:02:05Bosnia's silent killer: The coal industry

Sleeping in the smog. Video, 00:02:10Sleeping in the smog

Delhi's air pollution is triggering a health crisis

Delhi smog car rota angers residents

Tackling the toxic danger inside cars. Video, 00:01:36Tackling the toxic danger inside cars

Hair-raising drive through Delhi smog. Video, 00:00:59Hair-raising drive through Delhi smog