By Trish Rooney In Ulaanbaatar, the air is its own health crisis. Ulaanbaatar, Mongolia’s capital and home to half of its population, has been under an air pollution crisis alert from UNICEF since 2018 and is one of the most polluted cities in the world. Mongolia’s freezing winters make burning raw coal the easiest way to stay warm for families living in traditional lodgings like yurts, while factories still use coal and pump carbon monoxide emissions into poorer neighborhoods, with devastating results on the population. Young people in the city are at a heightened risk of asthma, bronchitis, …