The toxic smog that settles over the Mongolian capital every winter has been a suffocating problem for well over a decade that successive governments have failed to dispel. In the depths of winter, the city’s daily average of PM 2.5 small particulate that can enter the lungs and bloodstream, can be 27 times higher than the level considered safe by the World Health Organization. Respiratory illness cases have risen steadily, with pneumonia the second leading cause of death for children under five
