Asia is the largest and most populous continent, four times larger than Europe.
The center of Asia brings together very high mountains: the Himalayas has the highest peak in the world with the Everest (8848 m). The Ural Mountains are the natural border between Asia and Europe.
With 3.5 billion people, Asia has over half the world population.
The population has doubled in 50 years. The most economically developed countries have a policy anti-birth: they push couples to have fewer children.