"We Can Save the World by Eating Bugs and Drinking Urine."
It’s only a matter of time before Earth’s growing population faces a critical shortage of potable water. Luckily, science has a foolproof solution. A process called reverse osmosis can convert wastewater into H20 that’s as pure as the distilled stuff—even cleaner than what we usually drink. There’s just one problem: persuading people to drink liquid that used to be urine. After all, humans tend to pooh-pooh (pun intended) anything they find disgusting.
That repulsion response evolved to help us avoid ingesting things that are potentially dangerous. (Rotten food grosses us out for a reason.) But if humanity is going to survive, we may have to learn to overcome the ick factor.
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