Water - a source of survive
Water is used in many manufacturing processes involving cooling and diluting ,for transport and to extinguish fires.
It also shape the landscape by creating valleys and eroding coastlines.
One person needs at least five liters per day for drinking and cooking and a further twenty-five liters to keep clean.
Women in some countries spend several hours a day in the backbreaking task of carrying water.
Compared with this, just turning on a tap in your house is sheer luxury , but a luxury we often take for granted.
Water falls freely from the sky ,as part of an endless cycle of evaporation ,condensation and precipitation, but it has to be stored, treated and distributed and these processes cost money and have to be paid for.
The buildings of dams is particularly controversial because a large dam built to produce hydro-electric power may have effects outside the country where it has been built.
Floods lead to loss of life and environmental damage.
We are fortunate indeed if we can rely on a guaranteed ,economical.
Unlimited supply of fresh , clean water.