While energy issues tend to get a lot more media play, a perhaps even bigger challenge we’ll need to collectively deal with soon is the problem of potable water. Israeli company EWA is hoping to help nations with less fresh water resources get it inexpensively by turning humidity in the air into drinkable fluids. EWA, which stands for Extraction of Water from Air, uses a heat-based absorption system and a special energy saving condenser to suck moisture from the atmosphere and into reservoirs cleanly and efficiently.