Another Thought
If a product that requires a lot of water is produced in an area with abundant rainfall, then that product isn't actually using up any water (unless it pollutes the water). Chocolate and coffee come to mind. Nobody is irrigating the coffee and chocolate plantations with million-year-old water from an aquifer. That's the true problem, right? Places like Phoenix? And then there are mega-cities that are drawing water from distant sources, like NY and LA. But not growing the coffee and chocolate won't help Phoenix, NY, and LA. I'm sure the situation is similar in other countries. Amazon water can't help Beijing.
