International Mountain Day is celebrated annually on 11 December to create awareness about the importance of mountains to life, to highlight the opportunities and constraints in mountain development, and to build alliances that will bring positive change to mountain peoples and environments around the world. Mountains are home to 15% of the world’s population and host nearly half of the world’s biodiversity hotspots.

In 2002, the UN General Assembly (UNGA) designated 11 December as International Mountain Day. The Food and Agriculture Organization of the UN (FAO) coordinates the annual celebration of the Day to foster greater awareness of mountain issues.

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