Why don't hotels in Ulanchab have air conditioning?

Grassland ecology, architectural design. According to the query of the public review shows:

1, the use of air conditioning will lead to the indoor temperature is too low, thus increasing the outdoor temperature, which in turn affects the ecological environment of the grassland.

2, the architectural design of Ulan Bucha Visitor Center and Hotel adopts the traditional yurt shape, which is an architectural form with good ventilation and heat insulation, and can keep cool in the summer and warm in the winter without the use of air conditioning and heating.