Smoke rises from chimneys of houses amid smog on a polluted day in Ulaanbaatar, the capital of Mongolia. Fed up with the smog in Mongolia's capital, residents have resorted to sipping "lung" tea and "oxygen cocktails" in a bid to protect themselves from pollution, despite health officials saying there is no evidence they work. Byambasuren Byamba-Ochir / AFP
Smoke rises from chimneys of houses amid smog on a polluted day in Ulaanbaatar, the capital of Mongolia. Fed up with the smog in Mongolia's capital, residents have resorted to sipping "lung" tea and "Show more