Water is the source of all life on earth. Without water there would be no people, nor any plants or animals.

In the past 50 years the world’s population has more than doubled to 6.7bn today. According to UN forecasts, it is set to reach 8 bn by 2025 and 9.2 bn by 2050.

Human consumption of water is steadily rising. On average, each of us requires a million litres of water a year. 3.5 % of this we consume directly; the rest is used in livestock farming, agriculture, industry and the energy sector.

The average household consumption of water per person and day amounts to 25 litres in India, 235 litres in Switzerland, 382 litres in the US and 500 litres in Dubai.

Yet water is a finite resource. It can neither be increased nor replaced by anything else.