Some people believe when it's humid outside, that the air is holding an exceptionally high amount of water. But, that's simply not the case! Air doesn't hold water, they coexist side by side in all environments. It's impossible to have 0% humidity, although in certain climates especially in Australia, you can get pretty close. As a matter of fact, the lowest recorded humidity on earth "occurred in Coober Pedy in the South Australia desert when the temperature was 93 degrees and the dew point was minus 21 degrees producing a relative humidity of 1 percent". Now, that's some really dry air! If you're considering how clean drinking water can be harvested from the atmosphere, the above example is actually extremely rare and typically most of Australia's climate holds an enormous amount of water vapour. The following terms demonstrate the relationship between warm air and its ability to hold high amounts of water vapour which can deliver an abunda...