Pure water begins to boil at about 157 degrees Fahrenheit at the top of Mount Everest. At sea level, water boils at 212 degrees, and the boiling point drops about 1.8 degrees for every 1000-foot increase in altitude.
Mount Everest is located in southern Asia and has an elevation of about 29,028 feet, but the exact height is disputed among some countries. The Dead Sea is a little over 1300 feet below sea level, making the boiling point of water increase to about 215 degrees. Dissolving a solid substance, such as salt, in water increases the boiling point by a few degrees.