Residents cover their faces they ride their bicycles along a street on a smoggy day in Zhengzhou, Henan province. Photo: Reuters Residents cover their faces they ride their bicycles along a street on a smoggy day in Zhengzhou, Henan province. Photo: Reuters
Residents cover their faces they ride their bicycles along a street on a smoggy day in Zhengzhou, Henan province. Photo: Reuters
China pollution

Liquid nitrogen may help to clean up Beijing smog, Chinese scientists say

Scientists say pumping the super-cold gas into the atmosphere had the best results in tests

Topic |   China pollution
Residents cover their faces they ride their bicycles along a street on a smoggy day in Zhengzhou, Henan province. Photo: Reuters Residents cover their faces they ride their bicycles along a street on a smoggy day in Zhengzhou, Henan province. Photo: Reuters
Residents cover their faces they ride their bicycles along a street on a smoggy day in Zhengzhou, Henan province. Photo: Reuters
READ FULL ARTICLE