That is exactly correct. And there is no might be about it if the reports I've been reading are true. And it's isn't just drinking water but water for irrigation. We are already starting to see friction here as countries siphon off more and more water. I know this is hard to fathom on our planet, as full of water as it is, but these are credible reports prepared by the intelligence community, all unclassified and easy to access, that paint a rather dismal picture of a possible future and a lot of this future is based partly on climate change and partly on population growth.