Guardian: Outdoor air pollution has been officially classified as carcinogenic by the cancer arm of the World Health Organisation.
The International Agency for Research on Cancer (IARC), said air pollution from traffic and industrial fumes was a definite cause of lung cancer and also linked to bladder cancer. The strong verdict from IARC, a cautious body that pronounces only when the evidence is strong, will put pressure on governments to take action.
"The air we breathe has become polluted with a mixture...