What will happen to the Himalayan Mountains by the end of the 21st century?

At least one - third of the ice in the Himalayan Mountains will disappear by the end of this century because of rising temperatures, scientists said this week. This will threaten river flows that provide water resources for 1.9 billion people. Huge glaciers make the Hindu Kush Himalaya area the planet’s so - called "third pole" behind Antarctica and the Arctic. The area is home to the world’s highest mountains. It stretches 3, 500 kilometers across Nepal, Bangladesh, China, Bhutan, Afghanistan, Pakistan, India and Myanmar.