Mongolia calls itself the land of blue sky, but for seven long months each year, a thick cloud of smog hangs over the capital, Ulaanbaatar.
The coldest capital city in the world, Ulaanbaatar suffers from palpable air pollution during the winter months. The city's power plants are responsible for some of the pollution, but most comes from individual family dwellings.
Seeking to improve the quality of life for the city's approximately 1 million inhabitants, local bankers and development organizations are striving to combat pollution at its main source - suburban family homes.
Andrew Cullen is a freelance journalist based in Hovd, Mongolia.