Why do the Changpa graze their goats at higher and colder place?

The Changpa graze their goats at higher and colder places primarily to access the rich, high-altitude pastures that provide better nutrition for their animals. The cooler temperatures help in maintaining the health of both livestock and herders, as well as reducing the risk of diseases that can thrive in warmer climates. Additionally, grazing at these elevations allows them to avoid competition for resources with other livestock and to adapt to the harsh environmental conditions of their region.