In Mongolia a cold spell called "Dzud" approximately occurs every seventh year.
During such a "Dzud" - lasting four to five weeks - the temperature drops to under -40 centigrades, and due to that a large number of animals perish.
For the normads, being fully dependent on lifestock farming, this normally means a total loss of their livelihood and drives many normads to move to Ulan Bator the capital of Mongolia. There, without education and decent job prospects, they are living a dire existence on the huge waste disposal sites of the capital. The children are frequently left on their own without school education and without a home. These street children often seek refuge in the sewage system of Ulan Bator..