Water is vital for life - without it, nothing could survive on Earth.
As human-beings, we depend on water like all other creatures. We use water:
It has been estimated that, in total, every person needs at least 50 litres of clean water a day to keep healthy and avoid water-related diseases like dysentery and cholera. In over 50 countries around the world, people have less than this critical level. Yet in the UK, each person uses an average of 200 litres of water a day, and in the USA this figure rises to over 500 litres per person.
As the world's population continues to grow, so will the world-wide demand for water. If we are all to get at least 50 litres of clean water a day, we must manage our resources much better.