Desertification is a big problem in Mongolia, especially in the southern, western, and southeast areas. It's caused by both nature and human activities. Research shows that 72% of Mongolia's land is somewhat desertified, with 23% slightly, 26% moderately, 18% heavily, and 5% very heavily affected. Scientists are still figuring out how much of this is due to people and how much is natural. More data is needed to understand the full impact of human actions on desertification in Mongolia.