Some people in Mongolia are nomadic. Nomads are people who move around from place to place and do not permanently settle. They move because of the climate. They move so they have better gardening and food. This is starting to change because the climate is having a large negative affect on nomads. People in Mongolia have affected the environment of Mongolia. Climate change is responsible for an increase of desertification, natural disasters, and land degradation. Another reason the people are affecting the climate is deforestation. Deforestation is expanding due to human recklessness, pests, disease, and fire. Mongolian lands are becoming more arid through desertification. More and more species are disappearing and at risk for extinction, especially in population centers. Mongolians deal with air and water pollution caused by human industrialization.