Today Is December 11

International Mountain Day was established by the UN General Assembly in 2003 to encourage sustainable development in mountains. It is held each year on December 11.

There is no generally accepted definition for how tall a hill has to be to be called a mountain. Some regions say 1,000ft, others say 2,000ft.

Around one fifth of the Earth’s land is covered by mountain. They are home to 15% of the world´s population.

Mountains are home to 15% of the world´s population and host about half of the world's biodiversity hotspots. 

More than half of humanity relies on mountain freshwater for everyday life.

The K2, the world's second tallest mountain, has no local name. It is so remote and inaccessible that very few local people knew of its existence, and thus why it retains its original surveying moniker given to it by British surveyors.

Source UN.