After wearing a disposable air pollution mask for two weeks, I am completely disgusted, and scared of the processes that happen in my lungs.

Many residents of Ulan Bator, Mongolia, use coal-burning stoves during the winter months when staying warm is a matter of survival. But the pollution is hazardous to their health.

Insects that eat leaves and needles are causing increasing damage in Mongolian forests. The Siberian silk moth and the gypsy moth are the most destructive.

A resident of the 20th khoroo in Sukhbaatar District, D.Chuluunbaatar, has been planting fruit trees for 20 years.