Smoke billows from a chimney at a chemical factory in Tianjin municipality, neighbouring Beijing February 22, 2008. China has ordered Beijing and five surrounding provinces to cut industrial pollution for two months from late July to ensure clean air for the Olympics and Paralympics, an official said on Friday. Reuters Pictures 23 months ago

Smoke billows from a chimney at a chemical factory in Tianjin municipality, neighbouring Beijing February 22, 2008. China has ordered Beijing and five surrounding provinces to cut industrial pollution for two months from late July to ensure clean air for the Olympics and Paralympics, an official said on Friday.