Blue Gold - World Water Wars

I incresingly believe that water will be o horrible issue that my generation and the next one will have to deal with.
Unfortunatly, all northern europe to my knowledge has privitized water and it is really expensive. Additionally, for some reason people hear drink huge quantities of sparkled water as if it existed before normal tap water. Regardless of the kind of the bottled water, it is really expensive without having an actual reason for this.