China has boosted its air quality, but is it good for the health of its people?
The US air pollution problem may be worse.
Al Jazeera’s David Lipsman reports.
‘The air is cleaner’: Air quality in China, US improves
China has boosted its air quality, but is it good for the health of its people?
The US air pollution problem may be worse.
Al Jazeera’s David Lipsman reports.