I've been doing a bit of research into previous Water is/for Life Posters that are available. So far they all seem to have recurring themes.
The primary use of the colour Blue. Naturally this is because blue is the colour associated with water.
Photos of third world children, usually used to evoke an emotion like sympathy or even guilt.
Various water related images such as taps, glasses, bottles, droplets and splashes.
An image of the Earth as 71% of the planets surface is covered with water.
I think I will try to create a poster using typography to represent clean safe water or maybe highlight the dangers of unclean water and the diseases it can spread. I may even experiment with some photography so I can use it as a background or base for the poster?
Just some rough ideas so far....