Saving water - how and why
Around three quarters of the earth's surface are covered in water. The
shares are as the following:
Approx. 84% seas and oceans
Approx. 15% non-transportable groundwater at a level too low for access
Approx. 1% of the water is to be found in the combined areas of polar
ice, rivers, the groundwater and the atmosphere
Only around 0.03% of all water is immediately available to us as
fresh i.e. drinking water.
Water is one of the most precious treasures we possess, because it
is impossible to replace.
The worldwide consumption of water has quadrupled over the last 50
years. Almost half a billion people live in countries where water is
already in short supply. By the year 2050 at least one quarter of the
world's population will have to live with chronic or recurrent water
shortages. There are many reasons for this.
For example, alongside the
fact that the world population is increasing constantly, the spread of
steppe-like regions and the growth of the large deserts represent a risk
factor. But the largest problem is the growing pollution of the seas,
oceans, rivers and the groundwater.
Not only those countries which count as the driest regions in the world
need, to use their water economically. The highly developed countries in
North America, Europe and the Far East, some of which have more than
enough water, also need to use their water sensibly. It is these
countries which use the most water. It is here that you will find the
most dishwashers, car washes and industries which depend on water. It is
here that people shower and take baths most often, and here that they
give the least thought to water as public property.
Alongside using water in private households for washing, cleaning,
showering and watering our gardens, industry is an important factor. For
example, the paper, car, food and chemical industries are some of the
biggest users and polluters of water.
In such cases the government needs to step in and control water
consumption with strict regulations on how much water may be used and
how it has to be treated. One of the ways governments do this is by
introducing high charges for water.
As a result, some industrial countries already use production and
cleansing processes which do not produce waste water but where the used
water goes into a cycle and is retreated.
Two classic ways of saving water: water-saving toilet flushes and
devices to limit the flow of water in wash-basins and showers. Most
people prefer to use rainwater to water their gardens simply because it
is cheaper. Also please remember not to switch on the washing machine or
dishwasher until it is full and to turn off the tap when cleaning your
teeth or shaving. But that is not all.
Saving water especially means treating it with respect and not
polluting it. Toilets and drains should never be used as trashcans for
oils, fats, chemicals, medicines and cigarette ends. Cleaning agents and
detergents should be used economically and pesticides only when
absolutely necessary. Only if we do this we can play an active part in
treating water, one of our most precious treasures, with the respect it
deserves.