is suitable for a desert climate, where water production is dependent on ambient humidity. The Negev desert in Israel, for example, has a significant average relative humidity of 64%. Contrary to some online sources, a 1922 article in Popular Science cites an average relative humidity of 30% for the Sahara Desert, about half the humidity in an air-conditioned home. Moreover, the effect of the dew point causes early mornings to have higher humidity, so that atmospheric water generation is possible even in the harshest climates. References Drinking water Water treatment Water supply Membrane technology