Issues and struggles over water is what we're going to see in the next generation until we find a cheap and easy solution to converting salt water into usable water for drinking, sanitation, etc.
I'm sure this will be true. Population growth and climate change will combine to cause insatiable demands for water, largely from agriculture.
Tensions are already high in other parts of the world, particularly between Egypt and Ethiopia over the Great Renaissance Dam across the Blue Nile. Ethiopia is sometimes called 'Africa's Water Tower' - it is still a poor country, but being the source of the Blue Nile confers a huge strategic advantage and natural wealth.
The constraints and opportunities afforded by natural geography - particularly in relation to water - are often overlooked in this modern technological age. Returning to India for a moment with its growing population, the Himalayan water sources will likely become ever more important. Have you ever wondered why China assigns such importance to Tibet? Both the Yellow River and the Indus find their source in that part of the world. Consider also why Africa, the cradle of civilisation, never advanced as quickly as Europe or the US - navigable rivers play a huge part in development, and compared to other parts of the world African rivers are riddled with disruptive waterfalls, making trade and transport profoundly problematic.
