It is in our nature as humans to take anything that is readily available for granted. And this applies to water, an essential resource needed to sustain life and civilization via agriculture, industrial, power generation and domestic uses.
Specifically, water is utilized for drinking, bathing, farming, feeding livestock, cooking, laundry, watering lawns, swimming pools, watering plants, in spas, washing cars, and for electricity generation to list these few.
Imagine if water, and in particular fresh water, is no longer available or becomes scarce, then what becomes of us? Well, the current world situation, with regards to water scarcity, is beginning to reveal the impact of people’s irresponsible use of water like it will never get exhausted.
This post, using examples where necessary, will throw some light on why people should be more cautious about how they use fresh water because failure to conserve fresh water could mean an end to life.
The volume of fresh water on earth
Most folks, like myself, must have asked this question: why should we be bothered about conserving water when 70% of the earth is covered by water? The question may sound ignorant, but it seems like a great question to ask. See, unfortunately, the 70% of the water that comprise the oceans are not suitable for drinking because the water is composed of salt.
Freshwater, on the other hand, which is highly needed for life-sustaining activity is only 3% of the earth. And to make matter worse, 2% of it is locked in glaciers and ice caps, and therefore, not immediately available for drinking. This leaves only 1% of fresh water, from the surface and underground water for drinking. And even at that, some of the fresh water from the surface, e.g, rivers, lake and streams are really not fresh and are contaminated. But a baffling question is that if 1% of fresh water has been available since the inception of humanity, then why has it not yet been exhausted?
This is because fresh water is a renewable resource as it always returns to the earth through the water cycle, but it may not return in the same quality, quantity, and to the spot where it originated from. And hence the need for a more effective conservation of fresh water.
Freshwater: an invaluable resource
One can easily deduce from the above statistics that fresh water is an extremely precious and renewable but limited resource, especially in areas of severe water shortages and droughts.
And the water shortage is not getting any better with the ever exponentially increasing world population. This is placing so much demand on this meager resource, and in addition to that, the standard of living is also on the increase even in developing nations. And this has also placed a lot of need for fresh water use to sustain the ever-growing standard of living. Take for instance, in the USA, where about 300 million gallons of water is needed per day, now use about 400 billion gallons of water each day.
Yes, given the above major factors, fresh water, if not well conserved, will run out or become scarce especially in localities where they are most needed. A few examples of cities and places, in the world, where population growth, agriculture, industrialization, climate change, and standard of living is impacting the scarcity of fresh water are
1) Cape Town, a major city in South Africa, which is already experiencing a shortage of drinking water.
2) Heavy water use in addition to climate change is affecting the Colorado river basin water quality and quantity flow.
3) The growth of industries in Moscow has led to water pollution which is worrisome because 70% of the water supply is from surface water.
4) The Aral Sea, which is between Kazakhstan and Uzbekistan, has had a reduction in water volume due to water diversion for agricultural purposes. This has shrunk the sea by 60% with an increase in salt content. All of these factors have affected the fishing industry.
5) Lake Chad, in West Africa, has also shrunk to one-twentieth its former size due to the dependence on it for agricultural purposes from these four countries: Chad, Niger, Nigeria, and Cameron. There is bound to be a serious water shortage in the future if these trends continue.
Scientists have forecasted that the global demand for fresh water will exceed supply by 40% and that 50% of the world’s population will experience water stress by the year 2030. All due to human actions, population growth, and climate change. This is a major cause for concern and calls for serious water conservation. So, what is fresh water conservation?
Freshwater conservation implies the following:
1) The wise use of the limited quantity of fresh water supply in our everyday activities. The quantity of fresh water used could be stretched to last longer, for both humans and the ecosystem, through an effective conservation program.
2) It also involves doing away with activities that could lead to freshwater pollution. And this involves strategies that could reduce or eradicate water polluting substances/processes, and improve water management and quality.
Benefits of freshwater conservation
1) It would generally ensure the survival of all life forms on earth
2) It could reduce saltwater intrusion in coastal regions, which could destroy freshwater aquifers.
3) It could reduce the number of sinkholes, which could be caused by the reduction in the groundwater table as a result of drought or groundwater use.
4) It could lead to a reduction in the energy used for water distribution. For example, in California, water transfer consumes 7% of energy. The reduced energy could also lead to a reduction in carbon footprint from the conserved fuel, which in turn could lead to less pollution. Less pollution implies a healthy environment for both humans and animals.
5) It could ensure the survival of aquatic animals in pollution-free fresh water.
6) It would ensure that essential facilities like hospitals, farms, gyms, firefighters, restaurants, and even health clubs get the needed amount of water to function effectively.
7) It could help saves water cost: using less amount of water means that water companies will charge less money for water consumption. If water is not properly conserved, it could lead to rising costs and a reduction in food supply.
8) It could help avoid political conflicts and even war. War has been fought for lands, and natural resources to mention these two. Freshwater will be no exception as communities and countries may resort to war to claim water reservoirs for agriculture and energy purposes.
How to conserve fresh water
1) Use of well-planned construction systems that factor in artificial recharge basins to increase groundwater recharge.
2) Stop/reduce the use of long showers
3) Use of a more effective mean of irrigation to conserve more water
4) Improve technology to enable the desalination of salt water for use as fresh water, and also to help spot leaks
5) Identify new sources of fresh water supply that can be redirected to where they are needed. Like the Los Angeles Aqueduct that carries nearly 150 Million gallons of water per day from Sierra Nevada to Los Angeles.
6) Support organizations that work hard every day to conserve global water resources
7) Use of smart water saving devices at home
8) Install rain gardens in the yards to recharge the groundwater. Stormwater can also be directed into recharge basins.
9) Stop insisting on lush green lawns. Use of water conserving methods like watering the lawns in the morning and evenings to converse water the could have been lost from evaporation.
10) Encourage water recycling programs that can help collect water from the air. For example, researchers have developed a device capable of harvesting water in “desert atmospheric condition.” The device works by converting atmospheric water, via vapor phase, to liquid water through a condenser.
11) Government and wealthy institutions could help fund new/existing water conservation technologies. Governments could also formulate policies to ensure that construction companies follow regulations that factor in groundwater recharge.
Freshwater conservation is essential for every one of us because our lives, those of posterity, and the ecosystem depend on it. This is especially as the human population and standard of living continue to increase and improve, respectively. And the climate continues to change. Freshwater, as already mentioned, is very important, and therefore, everyone should play a part to ensure that it is properly managed and sustained to continue to serve all life forms on earth.