I live in northern Britain and, even at the height of summer, it's rare for a week to go by, without at least one day of heavy rainfall.
Maybe it's me who's extrapolating globally from what I'm seeing locally. But I don't get any sense at all that the world is getting drier.
Still, if the 'water wars' predictions do turn out to be true, maybe we'll have an interesting reversal of fortunes in the future, where damp, wet, soggy countries become fabulously wealthy, like the OPEC nations today --through exporting tankers full of their spare rainwater.
Let's see how the Arabs like queuing up at the pumps to fill their drinking vessels at £2/litre!
Whilst we havent had wars, there have certainly been water conflicts even _within_ the UK. Consider Treweryn [2]. This was a town rich with Welsh culture and the Welsh language. It was flooded to become a reservoir to supply water to Liverpool in 1965. The decision to flood the town was made by UK Parliament, without gaining consent from Wales. The plans triggered mass opposition and protests, but they were ignored and the plan went ahead. The story of Treweryn acts as a beacon for the Welsh independence movement to this day [3]
Interestingly, the remains of the town became visible for the first time in decades a few years ago. Possibly a further sign of things getting dryer.
[1] https://www.metoffice.gov.uk/about-us/press-office/news/weat...
I also think that water wars seem unlikely as if you have energy, you can get water.
But it is not the type of war that we fight over oil or gas. But instead very localised conflicts over rivers. Think of Nile and Kashmir.
There is no point of conquering other countries for lakes or ground water. The transport is just too expensive.
