The Earth's hydrological cycle has been recycling our global water supply since the birth of the planet. Water from the surface evaporates, is cleansed in the atmosphere, and then returns to the surface, which captures every last drop in order to begin the cycle anew.

How can you preserve water? And why should you? Can you help the one billion that are without access to clean water by taking fewer showers or drinking less water? While changing the world certainly begins at home,  there might be ways which actually might be more effective in helping those less blessed or cursed (depending on your point of view!) with moisture, than the rain soaked Western European countries.

The UN and the Italian Swimming Federation are now partners in the Europe-wide ad competition and campaign "Drop by drop" following the sport body's enthusiastic acceptance of acting as a testimonial in the world of sport on the theme of preservation of water.

The average person drinks 2-3 litres of water per day, but their actual daily freshwater consumption is many times that amount. (View video here)