Water - There are diffrent approaches to managing water suply, some more sustainable than others
27 important questions on Water - There are diffrent approaches to managing water suply, some more sustainable than others
Main players in issues related to water resources
- The UN - its economic commisions for Europe water conservation aims to protect the quanity, quality and sustainable use of trans-boundary water resources.
- The EU - Its water framework directive and hydropower agreed set targets to restore rivers, lakes, canals and coastal waters to 'good condition'.
- National goverment agenices - such as the UK's Enviroment agency, which checks appliance with EU frame works but this could change post Brexit
Risks assosiated with water transfer schmes
- Rivers in source area can drop in flow - combined with impacts of climate change can lead to water scarcity
- Relocation of people
- Can spread disease and pollution
- Can change the salinity of the water - impact on fish species
- The area receving the water may coninue to over use and pollute without thinking of the consequences
What is water conservation?
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What did the Southern Nevada water Authority achieve
Restoration in the aral sea
However some areas can't be saved and the surface area is still less than half the total sea in 1960.
How does smart irigation improve water conservation
- It is a sustainable teqnique that provides crops with below the optimum water levles during the growth stage so they become less sensative to the lack of water done by drip feeding
- Produces the same quanity and quality while using less water
The south-North tranfer scheme in china
How much is the south-north transfer project expected to cost
An example of a megga damn project
How many people were displaced when the three gorges damn was bult
An example of the imapcts of the three gorges dam on marine animals
For how many people has the three gorges dam reduced flood risk
How much of Isrel's water is now produced by deslination
What price has water declined to in Israel
Example of a desalination plant
Is the desalination plant in Israel powered by non renewable or renewable energy
Why is the south-North Transfer scheme happening in China
Judgemnt on the south-North Transfer scheme and the three gorges dam
Judgment on Isreal's desalination project
- It is unobtainale for poor countries
- Less environtally damaging then other hard enginering schemes becasue the water is produced by solor energy
- Particularly good in rich coatal dry countries
How much energy is needed to desalinate sea water
How long is the south-north canal
How many people were displaced for the construction of the central route for the South-North Transfer scheme
How many countries share lakes and rivers
By 2030 of many of the world's population will be living in areas of actuate water shortages
How many people does UNESCO suspect will move from sub sharan africa between 1997 and 2020
Where is water conflict more likely
How many water conflicts does the UN think are around the world
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