As global temperatures rise and governments fail to address this issue, water becomes ever more important to human survival and an even more precious resource. Our world literally cannot exist without it.
This single-image category is for images of water in all its many forms – liquid, frozen, vaporised. Show us your shots of water in its many uses, from survival and irrigation to celebration and leisure activities.
It could be water within a landscape, or the creatures that live in it, the people who work or play in or on it. Show us rain, ice, snow, floods, rivers, lakes, oceans. Show us water in close-up – snowflakes, reflections, ripples or droplets.
The winner of this category will receive £500, Radiant Photo imaging software, membership of The Royal Photographic Society plus a copy of Tonic magazine