## Water in Sydney, AustraliaEnvironment analysts

The technology is getting batter, there were lots of machines invented, the population is growing, the global climate is getting warmer, usually they all cause the use of water increases. However, in Australia, it seem like the savings of water is increasing each year. How and why is that happening?

S= Savings in million Liter per year

n= number of years after year 2000

S=1700+5825n

The equation works for every situation.

2002:

S= 1700+5825 (2002-2000)

S= 1700+5825 (2)

S=1700+11650

S=13350

Verification:

S=1700+5825n

13350=1700+5825n

13350-1700=1700+5825n-1700

11650=5825n

11650/5825=5825n/5825

n=2

As the year increased by 1 each time, the savings just increases by 5825 each time.

The savings water in Sydney is increasing at a rate of 5825 in million Liter every year after 2000. From our perspective, the savings of water in Sydney is keep increasing because of the climate change. The glacier is melting and it has an impact on Sydney's water.

Extrapolation data:

Data Set #2

S= Saving in million L per year

n= how many years after 2000

Equation: S= 5825n + 1700

S= 1700 + 5825( 2008-2000 )

S=1700 + 5825( 8 )

S= 1700 + 46600

S= 48300

Verification:

48300= 1700 + 5825n

48300 - 1700=(1700 - 1700) + 5825n

46600=5825n

46600/5825= 5825n/5825

4=n

Saving the water increase 5825 million liter every year after 2000.

Extrapolation data (data set #2):

The year increased by 4 each time, the savings just increases by 23300 (5825*4) each time.

(data set #1)

Interpolation:

The equation works for both data set, also the initial values of both data are the same. The only difference between them is the rate of change. Data set #2 records the savings of water every 4 years, but data set #1 records the savings every year. Because the rate of change of independent variable in data #2 is bigger than in data #1, the rate of change of dependent variable is also bigger in data#2 than data #1. But when you use the rate of change of the dependent variable ( 23300 ) in data #2 divided by the rate of change of independent variable ( 4 ), you will get the same number as the rate of change of data #1 (5825).

We believe that the patterns and relationships we see are able to justify the conservation. According to the website "Sydney's water balance", there are many organizations that work to save water in Australia. The saving water in Sydney is increasing throughout the years because the technology, education, and other things are getting better so that there are more and more people realizing the importance of saving water.

10 Facts:

1: Earth is called the water planet, because the water is covered 71% on the surface of the earth. And there is about 1.4 billion cubic kilometers of water on Earth, but there is only 0.014% of them is fresh water which is used for human needs, including water for the ecosystems on which humans depend.

2: Because of the human’s population is growing bigger and bigger, the water is might not enough for the people to used if the population is keep going to increase.

3: A large percentage of the water is found in the Amazon basin, Canada, and Alaska. About three-quarters of annual rainfall comes down in areas where less than one-third of the world’s population lives.

4: Waialeale (in American) is the most wet place in the world, it average rain rain fall is 12244millimeter per year and about it rain 335 day per year. Atacama Desert is the most dry place in the world, it average rain rain fall is 0.1 millimeter per year. During 1845-1936there is 91 years that rain didn’t fall one rain.

5: Water reclamation and reuse have cut industrial water use in some developed countries, notably Japan and the United States, while reducing the pollution released by industry into oceans, lakes, and streams.

6: Due to the droughts that happened across Australia in recent years, the production of drylands agricultural had been reduced. We can analyze the impact of Australian food production using Australian Bureau of Statistics data on land and water. It also has an implication on the global food security.

7: Australia has been focussing on developing wastewater recycling and seawater desalination plants recently because of the droughts.

8: According to a survey study, people in 1495 indicate that Australians have a positive thinking of saving water and water conservation.

9: According to the Australians' Water Conservation Behaviors and Attitudes by Sara Dolnicar and A. Hurlimann, the results indicate that the many daily facilities that are used for water conservation such as the installation of water efficient showerheads, dual flush toilets and recycled water on gardening are used during 1980s and 1990s. However, although all those things were used, there is no significant change on the amount of water saved.

10: By the end of 2001, the Perth dam storage were extremely low, water restrictions were introduced on September, 2001. The water sprinkles in Perth only worked twice a week, people were only allowed to water their gardens specific days.

This graph is showing that 6 different way to showing where does the water saving from in Australia . The six different ways are regulatory measures, recycled water, leakage reduction, business program, residential outdoor and residential indoor. At 2010 the regulatory measures is most in the 10 years.

This graph is showing that in a year different water been used for different 5 subject in Australia which is toilet, shower, dishwasher, miscall and cloth-washer. The Australia people spend there most water to shower, and the less water using is the dishwasher.

This graph is showing about each different place’s different people using how many water in a year. The red one is showing per-capita available of “blue water”. The blue one is showing the total water availability of “blue water” or renewable fresh water. And the right column is showing the per-capital water availability. The left column is showing the total water availability. And it both is showing in every year. The X line is showing the different places which has saving the water. The total water available or renewable fresh water at Asia are using the most, and at Australia this renewable water are using the less, but at Australia the per-capital using water are the most, I think that happened is because that there is very less people in Australia so if they per capita used a lots put total it just used a little. And for Asia there is a lots of people so there per capita used a little but add together is still shows they used a lots.

From the table we can see Australian’s wiliness to the conservation of water. 97% percent of people think that saving water is important, 92% of people conserve water wherever they can, 74% of people have already experienced limited water supply before, only 9% of people think that water conservation is not their responsibility. Therefore according to the data, the Australian community has seem the importance of water conservation. And are always being comfortable with saving water. From my opinion, that couldn’t have happened in many countries, such as China and Japan. Australian have got that thinking in their minds, as a result, when there is a motive power that encourages them, like the droughts, they could easily save much water like they did according to the data given in part 1.

This graph showed the dam storage in each year. In 2000, the storage was high (means there were a lot of water), but in2001, since June, the storage started to decrease a lot. Until the end of 2001, the dam storage was extremely low. And in 2002, maybe Australian realized the problem and started to save water. Then it worked, in 2003 and 2004, the dam storage got higher and higher. Related to the data given in part 1, the more people save, the higher dam storage is.

Gap minder:

This graph is about the amount of desalinated water produced in each country. As we can see, at the point of 1997, the desalinated water produced started increasing or started increasing at a higher rate in 3 of the countries in Middle east &amp; North Africa. And then in 2002, the other 3 countries or more also started to increase the amount of desalinated water produced.

This screenshot showed the amount of desalinated water in the countries of other continents. Except for the US, other countries’ desalinated water produced stayed the same including Australia. I didn’t see any pattern that matches to the linear relationship. In the US, the desalinated water produced stayed the same from 1982 to 1987, and then increased from 1987 to 1992, after that it stayed the same again.

In this graph above, the water withdrawal per person (which means the water consumption of one person) of many countries such as Japan and Canada maintains a balance and doesn’t have big changes. Many other countries like Australia didn’t have the statistics except for in 2002. In the US, the water withdrawal per person was decreasing from 1987 until 1992. It is the same period as the period the desalinated water produced increased according to the previous graph. There was a global stock market disaster in 1987 started from the US. It affected the consumption, reduced the national income, and the consumptions was declined and the production was affected. From my perspective, one of he reasons that the period the water withdrawal in the US decreased is because of the 1987 stock market disaster.

There is a limitation because you need a certain amount of water everyday and it's necessary, at that point you cannot save anymore water.

I have choose five country in side this graph there are Gambia, China, Denmark, Egypt and Australia it is measure the renewable water per person for every country from 1965~2005 and all of this five country just has the same renewable water per person the same it is 1M we can seen from the graph, and the X line is showing the time, which is from 1965~2005. And the Y line is showing what is the graph is showing also it is measuring by milliliter.

This graph is showing the total water withdrawal and it is measuring in the billion cu meter also the Y line is showing that, and the X line is showing the time from 1965~2005. And we can see at 1982 to 1997 the China is slowly increase, but at 1997 to 2002 the China just increase faster. And the Gambia are the just stays the same it didn’t changed from 1982 to 2002. Denmark is also stays at the same with the Gambia from 1992 to 2001. Australis and Egypt both had just appear once on the graph at 2002.

This graph is telling about the Industrial water withdrawal. And from 1982 to 1987 China’s percent is slowly decrease and from1987 to 1993 the China’s percent is slowly increase from 1993 to 2002 the China’s percent is turn a little faster to increase. And Denmark from 1992 to 2002 is decreasing in a ver slowly way. Gambia is opposite side of the Denmark, it has been increase in a slowly way from 1982 to 2002. And Australia were just appear at 2002.

Conclusion:

From my perspective, the most efficient way for the government to encourage people save more water is to increase the price of water. If the price is right, people will do right things. If people can’t afford the price of a large amount of water, people won’t waste too much water. They don’t care about water because people don’t earn them, however people will care about the money they spend because they earn them and they have a concept of the limitations of their poverty, so they will really care about their poverty. Also, the government should focus more on developing the water recycle system and renewing water resource, it should build more purification plant in every city. Then the water can be reusable.

Credits:

Created with images by pattyjansen - "clovelly sydney australia"

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