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View submission: Bill Nye, UNDENIABLY back. AMA.
I think people would be surprised how cheap it is in energy to desalinate water. Around 3 bucks per 1000 gallons (ocean water). There are a lot more obstacles to overcome however besides lowering energy costs, that would make it feasible on a very large scale, but there are countries like Israel who get around 40% of all the water they consume through desalination. I also believe there won't be a break through, but rather a slow process where people are constantly making existing tech better.
There's nothing here!