Technology is great but government needs to think it through. To sell in the USA is to get permission from your local government.
Here's what I compare it to. We have desert sand right? It is hot there right? Why don't they put up a few millions of them solar cells to harvest that sun energy? Sounds practical right? Not quite. There is a reason why the desert area is hot and dry. If you extract all that heat from the natural environment, it will cause some form of climate issue like if the desert normal temperature will drop by a few degrees, them animals that thrive on that heated platform may die off.
Now with this contraption. We have oxygen in the air. Robbing the 02 from the air to make h20 will lead you with more Carbon being left in the air. Get enough of this system for every household and we will be living on Mars like atmosphere. Although my chemistry science may be off but you get the idea behind what I'm trying to say here.
Balance is key. Do enough to help support but not disrupt. The word is "sustainability"
