92 percent of world breaths polluted air

WHO calls for dramatic action to make the environment cleaner

Nine out of 10 people globally are breathing poor quality air, the World Health Organization said on Tuesday, calling for dramatic action against pollution that is blamed for more than 6 million deaths a year.

New data in a report from the UN's global health body "is enough to make all of us extremely concerned," said Maria Neira, the head of the WHO's department of public health and environment.