11 Déc 2025

11 December is International Mountain Day to highlight the importance of mountains to life, create awareness and take action for bringing positive change to mountain peoples and environments around the world. #MountainsMatter

About

As of 2003, International Mountain Day has been observed every year 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. #MountainsMatter

The Food and Agriculture Organization of the United Nations (FAO) is the coordinating agency for the preparation and animation of this celebration and is mandated to lead observance of it at the global level.

Mountains and the Environment

Covering around 27% of the earth’s land surface and home to 15% of the world’s population, mountains are essential for human lives and livelihoods. Mountains regions provide freshwater, energy and food – resources that will be increasingly scarce in coming decades. Mountains also host about half of the world’s biodiversity hotspots. However, mountains are under threat from climate change and overexploitation. Learn more about the role of mountains for sustainable development and the environmental challenges faced by these regions (including glaciers melting and plastic pollution) below.

Learning

Resources and News