High-tech agriculture can prevent oncoming global water wars

Forget about oil or gas — you should be worrying about the less discussed but far more concerning fact that the world is running out of clean, drinkable water.

I wrote this article while in Kathmandu. Nepal’s capital and largest city has a severe water shortage. Even though all homeowners pay a fee to the government to get water on tap, supplies run only once a week for a few hours. Desperate residents are then forced to purchase water from private suppliers. While this is affordable for richer people, it’s a big problem for…