The boiling point of a liquid varies depending upon the surrounding environmental pressure. A liquid in a partial vacuum has a lower boiling point than when that liquid is at atmospheric pressure.

The boiling point of water is 100 °C at normal atmospheric pressure, at sea level. At higher altitudes, the air pressure is lower, and water boils at a lower temperature. At the top of Mount ...

Between 61% and 77% think global warming is affecting problems such as electric outages, water pollution, reduced snowpack, air pollution ... latest edition of Boiling Point, a newsletter about ...