Imagine what it might be like to soar over the Himalayas. Here's an image of what you might see — what the USGS calls the snow-capped peaks, ridges and major rivers of southwest China. This photo was taken on April 12, 2001. The Himalayas are a vast mountain range in Asia that run along the Indian subcontinent from the Tibetan Plateau. Due to climate change, a enormous amount of snow cover is melting. Experts say this snowmelt will threaten about 1 billion people.