[grraaaaahhh]

"Researchers from MIT and China have developed a solar desalination device that could provide a family of four with all the drinking water it needs — and it can be made from just $4 worth of materials"

My dude, it's the first words in the article.

[adrianN]

People need a lot more water than drinking water. Most water is used for agriculture. Each time I flush my toilet I use enough water to keep me alive a week.

[happyopossum]

There’s no reason your toilet needs to use clean drinkable water - it only does today because that’s what we have the infrastructure to deliver.