I thought I'd seen somewhere that was being looked in to as countries will now need to start looking after their resources. It is however not something that can be done overnight.

They've done the same with British Steel because we're going to need to make our own armour/steel plate. And the railways are being nationalised again. So he/they will get around to it.

Unfortunately 'building dams/reservoirs' is often the line spouted as being the fix (along with all the leaks) but a recent New Scientist article -

'We are undergoing unprecedented loss of freshwater across the planet' makes it quite clear we are in deep shit.

This is the direct link to the Science Journal entry referenced by the New Scientist article.

You can also look up the aquifer data which is very low right across the country. In order to get back to healthy levels we will need a significant amount of sustained rainfall.

But for many when it does rain hard it will be flash flooding because the ground is so dry it will be incapable of soaking water up quick enough.