What is the main reason for water shortage?
Water shortages creep up quietly on communities for many years; droughts generally accentuate them. Often the occurrence of a water shortage has been delayed by normal or above-normal rainfall even though the causes have been growing in strength, ever ready to assert themselves at the first opportunity. The chief reasons for most water shortages can be attributed to greater than anticipated population increases, decreases in well capacity, sediment accumulations in reservoirs, and increased water requirements, both domestic and industrial. This means that the bigger the population grows the less the water becomes. People will pay more and more for a kilolitre water the more babies is brought in this world because every human needs water to be healthy and to be able to survive.
How can we help with water conservation?
- Shower bucket.Instead of letting the water pour down the drain, stick a bucket under the faucet while you wait for your shower water to heat up. You can use the water for flushing the toilet or watering your plants.
- Turn off the tap while brushing your teeth.Water comes out of the average faucet at 2.5 gallons per minute. Don’t let all that water go down the drain while you brush! Turn off the faucet after you wet your brush, and leave it off until it’s time to rinse.
- Turn off the tap while washing your hands.Do you need the water to run while you’re scrubbing your hands? Save a few gallons of water and turn the faucet off after you wet your hands until you need to rinse.
4.If it’s yellow, let it mellow. This tip might not be for everyone, but the toilet is one of the most water-intensive fixtures in the house. Do you need to flush every time?
- Fix your leaks.Whether you go DIY or hire a plumber, fixing leaky faucets can mean big water savings.
- Re-use your pasta cooking liquid.Instead of dumping that water down the drain, try draining your pasta water into a large pot. Once it cools, you can use it to water your plants. Just make sure you wait, because if you dump that boiling water on your plants, you might harm them.
- Head to the car wash.If you feel compelled to wash your car, take it to a car wash that recycles the water, rather than washing at home with the hose.
- Cut your showers short.Older shower heads can use as much as5 gallons of water per minute. Speed things up in the shower for some serious water savings.
- Choose efficient fixtures.Aerating your faucets, investing in a low-flow toilet, choosing efficient shower heads, and opting for a Water Sense rated dishwasher and washing machine can add up to big water savings.
- Shrink your lawn.Even better:lose the lawn completely. Instead, opt for a xeriscaped landscape that incorporates water wise ground cover, succulents, and other plants that thrive in drought conditions.
- Don’t run the dishwasher or washing machine until they’re full.Those half-loads add up to gallons and gallons of wasted water.
- Keep an eye on your bill to spot leaks.If your water bill spikes suddenly, there’s a good chance that a leak is the culprit. Call in a plumber to check your lines to save water and cash!
- 13. Install a rain barrel.Rainwater harvestingis a great way to keep your plants hydrated without turning on the hose or sprinkler.
- Flush with less.Older toilets use a lot of water. You can reduce your usage by sinking a half gallon jug of water in the toilet tank. Do NOT use a brick, because it will break down and the sediment can damage your tank.
- Water in the early morning.You’ll need less water, since cooler morning temperatures mean losing less water to evaporation. It’s not a great idea to water in the evenings, since this can promote mold growth.
- Hand-washing a lot of dishes?Fill up your sink with water, instead of letting it run the whole time that you’re scrubbing.
- 17. Use less electricity.Power plants use thousands of gallons of water to cool. Do your part to conserve power, and you’re indirectly saving water, too!
- Wash Fido outdoors.That way, you’re watering your yard while you’re cleaning your pup. Just make sure that the soap you’re using isn’t harmful to your plants!
- Skip the shower from time to time.Do you really need to shower multiple times a day or even daily?Skipping even one shower a week adds up to big water savings.
- Re-use grey water.Check to make sure that this is legal where you live, but in some areas you can do things like re-route the runoff from your clothes washer and use that water for things like flushing the toilet.
Is water shortage a problem in South-Africa?
Yes, there is a water shortage problem in South-Africa because people do not work sparingly with water and do not realize the worth of it nor the importance of the situation and that makes this problem even worse.
Is water shortage a global problem?
Water scarcity is not a factor of absolute quantity; it occurs frequently in both dry and moist climates. Rather, it is a relative concept comparing the availability of water to actual use. Desert regions, for example, do not classify as water scarce if demand for water is low. However, scarcity may exist in water-abundant areas if there is heavy population pressure, excessive pollution, or unsustainable consumption levels. Together, these forms of physical water scarcity affect every continent and approximately one-fifth of the world population.
In the United States and Europe, the average individual uses between 200 and 600 liters of water per day, compared to the 20 liters deemed to be the minimum daily requirement for drinking, washing, cooking and sanitation. Such unsustainable consumption levels have led to localized areas of water scarcity and significantly altered freshwater ecosystems. The massive Colorado River in the United States, which feeds the otherwise desert-like cities of Los Angeles, San Diego, and Las Vegas as well as millions of agricultural fields, now runs dry before reaching the ocean. As a consequence, the Colorado River Delta, which once supported plentiful plant and animal life, is now significantly diminished.water-use-per-capita.png
How can other countries help each other out with the current water shortage problem?
They can help each other by starting at their own homes and work sparingly from there on like to make use of multiple ways to save water and to make use of grey water. If one home can start with this and make it part of their lifestyle and their friends and family becomes familiar with it then the community will also start with the “Saving water plan” and then it will have a big impact on the community/county and the whole world will start to save water and work sparingly with it. This way a lot of countries will help each other and the problem with get easier to handle maybe it will be the big solution of global water shortage.
How much fresh drinkable water do we have left in South-Africa?
Water is life. For millions for years life on earth has been dependant on water for survival. When Neil Armstrong landed on the moon in 1969 he described Planet Earth as “a shining blue pearl spinning in space”. The blue colour is, in fact, the amount of water that is present on the surface. 70% of the earth’s surface is covered with water but of this, approximately 97% is salt water, with the remaining 3% being fresh water. Of this 3%, less than 1% is available for life on earth, whilst the rest is in the form of ice at the poles. But where does water come from?
The water that we have on earth is very old. The water that we are using now was used by the dinosaurs millions of years ago. This is because the earth recycles its water, i.e. it reuses its water. This recycling of water is called the water cycle. Water exists on earth as water droplets and is found in oceans, rivers, lakes, dams, swimming pools, the soil, etc. Heat from the sun causes some of these water droplets to change from a liquid to a gas, called water vapour. This is called evaporation. The water vapour then rises into the atmosphere. As the water vapour rises it cools down and changes from a gas to a liquid, and thus back into water droplets. This is called condensation. When these water droplets are in the atmosphere they join together and form clouds. When these droplets get too heavy to stay in the atmosphere they fall to the earth as rain, hail, snow, etc. This is called precipitation. Some of these water droplets fall into oceans, some into rivers and streams, some into lakes and dams, and some onto the land where it either seeps into the ground or runs off the surface into rivers, lakes, dams or the ocean. Water knows no boundaries and as it flows over the earth’s surface it is used by communities of plants, animals and humans in order to survive. These water droplets can then be reheated by the sun and the whole cycle repeats itself.
The amount of water on earth is constant and cannot be increased or decreased, but it is unevenly distributed across the earth. South Africa receives an annual rainfall of 492 millimetres whereas the rest of the earth receives 985 millimetres. This is nearly half the earth’s average. Thus South Africa is classified as a water-stressed country. There is also uneven distribution of rainfall across South Africa. The eastern half of the country is much wetter than the western half due to the nature of the weather conditions. South Africa also experiences alternating periods of droughts and floods which affects the amount of water across South Africa. In addition, hot dry conditions result in a high evaporation rate. Scientists predict that with global warming, South Africa will experience much wetter wet seasons and much drier dry seasons, resulting in an increase in floods and droughts. Distribution of mean annual rainfall in south africa.jpg There is also uneven distribution of rainfall across South Africa. The eastern half of the country is much wetter than the western half due to the nature of the weather conditions. South Africa also experiences alternating periods of droughts and floods which affects the amount of water across South Africa. In addition, hot dry conditions result in a high evaporation rate. Scientists predict that with global warming, South Africa will experience much wetter wet seasons and much drier dry seasons, resulting in an increase in floods and droughts.
How long will the fresh water supply in the world still hold?
The glass-half-full answer is no……. at least not at the planetary level. Today there is just as much water on the planet as there was when the first signs of life appeared.
Every year, about 110,000 billion cubic meters of water falls on the land surface of our planet as rain or snow. That annual endowment of water would cover all land to nearly a meter deep if it was spread evenly.
More than half of all of that water evaporates quickly or gets taken up by trees, shrubs, and grass.
More than a third flows out to the coasts, where it helps to maintain the delicate salt- and freshwater balance of estuaries, without which much of our seafood industry would collapse.
Of all the water falling on land, we’re consuming less than 10% to grow our crops, supply our homes, keep our industries running, and generate electricity.
Every bit of the water that falls on land or in the ocean or is used for human endeavors is eventually evaporated back up into the sky as water vapor, replenishing our planet’s never-ending freshwater cycle. No water is actually ‘lost’ in that global cycle.
So what’s the problem? Surely we can’t be in trouble if we’re depleting less than 10% of the Earth’s naturally renewable water, and the water cycle keeps bringing that water back year after year?
Here’s the catch: the water that falls from the sky isn’t evenly distributed around the globe, and our needs for that water aren’t the same everywhere.
So why can’t we just move water from places of abundance to places of shortage? Why can’t we take the fresh water flowing to the Arctic Circle and redirect it to the parched cities of the American Southwest?
Such plans have been on the drawing boards of big water dreamers for decades. In truth, the only thing that has stopped these initiatives is the fact that far less costly alternatives usually exist for meeting our water needs in the near term. We only have to look to the South-North Water Transfer Project in China for a bellwether of what may come. The Chinese will invest $62 billion to build a pipe-and-canal system to move water over hundreds of kilometers from the Yangtze River to parched cities and farms in the north. As the New York Times reported last year, “It would be like channeling water from the Mississippi River to meet the drinking needs of Boston, New York and Washington.”
But here’s another catch: Even if we could move water over great distances in a cost-effective manner, it takes a tremendous amount of energy to do so. Nearly 20% of all electricity used in California – whose statewide plumbing system is reminiscent of a Rube Goldberg design – is spent moving water around. The energy required to move water – and its associated carbon emissions — is not inconsequential in the efforts to arrest climate change. Until we have abundant clean energy sources to power such re-plumbing of the planet’s water sources, we should not be investing in them.
And yet one more important consideration: We should be careful about ‘robbing Peter to pay Paul.’ As we dry up a river or lake to harvest or export its water, the health of fish populations and natural freshwater ecosystems plummet. In virtually all of the large rivers that have begun to go dry, fisheries have been decimated, leading to severe hardship for local people that depend upon that food source for their subsistence and livelihoods. Last year, I published a journal paper with colleagues at The Nature Conservancy that suggested that depletion of a freshwater source by more than 20% will likely have harmful ecological and social consequences.
The conclusion that should be drawn from all of this: we need to take stock of our local water sources and manage them wisely. As my water colleagues like to say, that “All politics — and water — are local.”
There is no current statistics that can say how long we will have access to fresh drinking water left in this world. number of months in which water scarcity.png
What will happen when there is no more fresh water left?
A water shortage can affect you no matter where you live in the world. It’s arguably humanity’s most vital natural resource. It sustains all other activities; it’s the essential basis of economies, societies and human life.The current crisis results from a combination of factors, but one rises above the others: the global population boom. As populations grow, so too, do their demands on water. People must be fed, and agriculture must have water to grow crops and livestock. This puts a demand on naturally available water.To secure a source of water for its people, a government may construct a dam, but dams have drawbacks as well. Due to their large surface area, they lose a lot of water to evaporation. And they also serve as inadvertent collection sites for natural salts found in freshwater. These salts build up over time, and cropland irrigated through a dam may become poisoned from salt concentrations. This can lead to food loss — not only the crops themselves, but also the cows, pigs and chickens that eat the affected grains.Instead of finding new places to grow crops, farmers with ruined fields may move to cities in search of work. Sudden urban population growth strains public infrastructure — like sewers. The poorest residents may find that they have no choice but to use the water supply directly, without sanitation. Pollution would also increase through the growth of industry, which may boom with a sudden influx of cheap labor. If this happened, it wouldn’t take long for the common water supply to become unsanitary under these conditions. The polluted water supply would kill aquatic life, further reducing the available food supply. Water-borne diseases, such as diarrhea, would spread.
What percentage of water in the world is fresh drinking water we can survive on?
Less than 1 percent of the world’s freshwater are readily accessible. It is very little of the total amount of water in the world. No one can tell how long this fresh water will hold us.