Just like we had wars over oil in the 1960/70s future global frictions will be over fresh water eg China has 19.5% of the world's population but only 7% of the fresh water, similarly India has 16% of the world's population and only 4% of the fresh water, whereas US has the 4.5% of the world's population but 7% of the fresh water.
ps India is going to surpass China in population by 2050.
When science can commercialize fusion, 80% of the worlds problems will be solved.
Desalinization and unlimited clean electrical energy will enable the worlds deserts to be farmed efficiently.
