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The Shrinking Aral Sea Lesson Objectives
The Shrinking Aral Sea Lesson Objectives
The Shrinking Aral Sea Lesson Directions
The Shrinking Aral Sea Lesson Directions
Aral Sea Basic Facts/Recap
Aral Sea Basic Facts/Recap
Resulting Tragedy
Resulting Tragedy
How do we fix it
How do we fix it
Improve and repair current irrigation
Improve and repair current irrigation
What percent of water that is meant for the Aral Sea actually makes it
What percent of water that is meant for the Aral Sea actually makes it
Desalinate what water is left
Desalinate what water is left
What is bad about desalination
What is bad about desalination
Charge farmers for water
Charge farmers for water
Who would be unlikely to be in favor of charging fees for water
Who would be unlikely to be in favor of charging fees for water
Use hybrid and drought resistant crops
Use hybrid and drought resistant crops
Why do people resist the move to using different types of crops
Why do people resist the move to using different types of crops
Use crops native to a desert climate
Use crops native to a desert climate
Which of the following is not a benefit to growing desert crops in the
Which of the following is not a benefit to growing desert crops in the
PROS In a matter of decades all the water would return
PROS In a matter of decades all the water would return
What needs to happen to get more water into the Aral Sea
What needs to happen to get more water into the Aral Sea
Utilize international efforts for restoration
Utilize international efforts for restoration
Which organization has already done much work to help restore the Aral
Which organization has already done much work to help restore the Aral
How do we fix it
How do we fix it

Презентация: «The Shrinking Aral Sea Lesson Objectives». Автор: Joey Schmidt. Файл: «The Shrinking Aral Sea Lesson Objectives.ppt». Размер zip-архива: 8630 КБ.

The Shrinking Aral Sea Lesson Objectives

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1 The Shrinking Aral Sea Lesson Objectives

The Shrinking Aral Sea Lesson Objectives

Students will be able to: 1. Explain what has happened in the past to drastically change 2. Analyze the proposed solutions to the Aral Sea environmental issues. 3. Project the future of the Aral Sea through persuasive writing

2 The Shrinking Aral Sea Lesson Directions

The Shrinking Aral Sea Lesson Directions

1. Go to http://www.youtube.com/watch?v=06BRxu3Zvb0 2. Read each slide and listen to the voice over for each as you do so. 3. Answer each prompted question. 4. Complete short answer prompt at the end of this presentation.

3 Aral Sea Basic Facts/Recap

Aral Sea Basic Facts/Recap

Once the fourth largest freshwater sea in the world at over 26,000 sq. miles, the words Aral Sea mean Sea of Islands. Served Kazakhstan to the north, Uzbekistan to the south, and its fishing industry helped feed nearby Turkmenistan, Tajikistan and Kyrgyzstan. Once fed by the Amu and Syr Rivers, until they were both diverted to support the cotton industry in Uzbekistan when the area was part of the former Soviet Union.

Play Voice Over

4 Resulting Tragedy

Resulting Tragedy

The Aral Sea is now less than 10% of its former size (26,000 sq. miles to under 2,500 sq. miles). The Northern portion has been stabilized, but the Southern part is almost gone except a small strip in the west. Summers are extremely hot and dry, and winters are longer and colder, making agriculture more difficult. The combination of salination of the land, overuse of fertilizers, and testing of chemical weapons have left the land and water polluted and dangerous.

Play Voice Over

5 How do we fix it

How do we fix it

Play Voice Over

Play Voice Over

6 Improve and repair current irrigation

Improve and repair current irrigation

PROS Much of the water could be saved, allowing farmers and the government to return about half of the river water to the Aral Sea

CONS It would be very expensive. The major rivers are located in multiple countries.

Description: It is estimated that up to 70% of water that is diverted for farming is wasted and simply evaporates because of a poorly built irrigation system. For example, only 12% of the canals in Uzbekistan are resistant to water loss.

Play Voice Over

7 What percent of water that is meant for the Aral Sea actually makes it

What percent of water that is meant for the Aral Sea actually makes it

there?

1. 10% 2. 20% 3. 30% 4. 40%

8 Desalinate what water is left

Desalinate what water is left

PROS It would make the water healthy again for humans. Fish and plant life would return to the sea.

CONS It would be extremely expensive, and in countries that cannot afford it. It would use a lot of energy that could be bad environmentally.

Description: Much of the water in the Aral Sea right now is too salty for humans or animals. The water could go through the desalination process, making it fresh water again.

Play Voice Over

9 What is bad about desalination

What is bad about desalination

1. It makes water clean. 2. It cost a lot of money. 3. Afterwards plant life would flourish. 4. Afterwards fish would fill the sea.

10 Charge farmers for water

Charge farmers for water

PROS Farmers would stop wasting water they don't need. It would generate income that could be used for restoration efforts.

CONS Farmers might stop farming if it became too expensive.

Description: The government is currently providing the water for free to encourage farmers to keep farming. They could start charging fees, which would decrease water waste as farmers would not want to pay for what they aren't using.

Play Voice Over

11 Who would be unlikely to be in favor of charging fees for water

Who would be unlikely to be in favor of charging fees for water

1. People who live/lived along the sea shore 2. The government 3. Farmers 4. All of the above

12 Use hybrid and drought resistant crops

Use hybrid and drought resistant crops

PROS Plants would use less water.

CONS Other varieties tend to be more expensive for farmers to purchase. Some people do not like scientifically created crops.

Description: There are many varieties of cotton, and some require less water than others. Additionally, scientist have created alternate types that require very little. Why can't people use those varieties?

Play Voice Over

13 Why do people resist the move to using different types of crops

Why do people resist the move to using different types of crops

1. Scientifically created crops are expensive 2. Some people don't like GMO foods 3. People would have to buy new machinery 4. All of the above

14 Use crops native to a desert climate

Use crops native to a desert climate

PROS No additional water would be needed on a regular basis. It would be easier to care for the plants. Salinization to the land would stop.

CONS These types of crops are not worth as much money to farmers, whereas cotton is worth quite a bit. Farmers want to earn as much as possible.

Description: There are many types of plants that grow well and naturally in a desert. Farmers should just grow what the land would naturally allow them to grow.

Play Voice Over

15 Which of the following is not a benefit to growing desert crops in the

Which of the following is not a benefit to growing desert crops in the

Aral Sea Region?

1. They're worth more money 2. They use less water 3. Farmers don't have to work as hard on them 4. Using these crops would reduce salinization

16 PROS In a matter of decades all the water would return

PROS In a matter of decades all the water would return

Health of the region would greatly improve.

CONS Estimates suggest it would cost between 30-50 billions dollars. Some countries are less willing than others to help restore the Aral Sea.

Build dams to divert more river water back to the Aral Sea

Description: Other dams could be built on the Amu and Syr rivers, as well as other rivers in different countries, to divert water back in the Aral Sea. It is estimated that the Aral Sea could return entirely in 20-30 years if this were done.

Play Voice Over

17 What needs to happen to get more water into the Aral Sea

What needs to happen to get more water into the Aral Sea

1. People need to leave their hoses running 2. Countries need to donate money 3. More Cotton needs to be grown 4. Dams need to be removed on the Amu and Syr

18 Utilize international efforts for restoration

Utilize international efforts for restoration

PROS The more countries helping, the less the financial burden for individual nations. It could create a shared sense of responsibility for the sea.

CONS There are some countries not willing to help, for example Uzbekistan who is currently diverting much of the water for their cotton crops.

Description: If the Aral Sea is ever going to actually return, it is going to require a joint effort from many countries, particularly from the countries within the region (Kazakhstan, Uzbekistan, Turkmenistan, Tajikistan and Kyrgyzstan). Other global agencies are helping as well such as the World Bank.

Play Voice Over

19 Which organization has already done much work to help restore the Aral

Which organization has already done much work to help restore the Aral

Sea?

1. The United States 2. The United Nations 3. The World Bank 4. The Aral Sea Federation

20 How do we fix it

How do we fix it

E-mail JosephJamesSchmidt@gmail.com you answer to the following question: What do you believe the future holds for the Aral Sea? What actions should be taken?

Play Voice Over

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