Manging Water Supplies - Sustainable water management for water conservation - WATER CYCLE

Question 1

Why are large solutions often considered to cause more problems than they solve?

Answer 1

Negative:
- Dams - produce CO2 and people displaced
- Desalination - salt, higher density of water

Question 2

Aims of sustainable water management

Answer 2

1. Minimise waste and pollution of water sources
2. Ensure that there is access to safe water at affordable prices
3. Consider views of all stakeholders
4. helps guarantee equitable distribution of water within and between countries

Question 3

Sustainable solutions points ( for potential 20 marker )

Answer 3

1.Public participation
- involvement of communities
- decentralise decisions making - ownership to local
- making appropriate tech ( hand pump)
-NGOs involved

2.Environment
-high levels of environmental protection
-Improves water quality
- restoration

3. Futurity
   - meeting present needs while ensuring future needs are met
4. Equity of social justice
   - equitable is union of supplies
   - fairness in pricing
   - delivery obligations to ensure water is provided

Question 4

What are the 4 main ways of sustainable management?

Answer 4

1. Use of intermediate tech solutions - Afridev hand pump
2. Sustainability and promote infiltration - great green wall in Africa
3. Holistic managent - Singapore
4. Cloud seeding

Question 5

What are key stats for the case study of Holistic approach? (Singapore)

Answer 5

1.Collect every drop of water: the government has various ways of encouraging citizens to use water prudently. Since 2003, per capita domestic water consumption has fallen from 165 litres per day to 150 litres per day.
Re-use water endlessly: Singapore is at the cutting edge of new technologies to re-use grey water
Desalinate more seawater: two desalination plants now meet 25% of the water demand.

Singapore have population of 6mil and still even import water

Question 6

Wha are key stats for the Afridev hand pump?

Answer 6

• over 1 million handpump in sub sharad africa
• promote capabilities of communities to maintain their own water
• used for school

Question 7

What are they key stats or the great green wall of Africa?

Answer 7

• will span 11 countires
• 8,000 km long
• progress so far, planted 111 million trees
• preserving desertification
• leaves provide comfort and canopy which increase humidity and shade
• planting drought resistant glacial trees
• generated new economy
• economically is good
• demi lume surrounds trees to collect water
• cost $8 billion in total
• still years from competition
• WB, un and African Union are involved and. Pledge money to continuer planting
• can push people out of their home?

Question 8

Cloud seeding

Answer 8

Pros
- can stop droughts
- prevent crop destruction
- can be done in less than half h hr
-generate rainfall for countires whenever needed
- it does this by dropping ice which attaches to cloud particles

Cons
- causes tensions between countries such as India and china
- unreliable and can cause weather destruction
- poorer countries do not have access to solutions like this as it is expensive and can only be afforded by more affluent countries

Question 9

Why do large management cause solutions

Answer 9

Positive:
- water transfer schemes - positive and boost economic growth
- Sustainable - affect environment, community and eoncomy by meeting the needs of today without compromising needs of the future