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Water transfers- a quick fix?

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Presentation on theme: "Water transfers- a quick fix?"— Presentation transcript:

1 Water transfers- a quick fix?
Source area Receiving area

2 Video: China’s Parched North Water crisis
Major Water Transfer Schemes Examples of existing schemes Proposed schemes International Lesotho to South Africa: Lesotho Highlands Water Project Turkey to Israel by tanker National: Snowy Mountains-Australia Melamchi Nepal Tagus-Mercia Spain Turkey to Israel undersea pipelines Austrian Alps to Spain + Greece by pipeline South-North transfer- China Ebro -Spain Ob to the Aral Sea NAWAPA Alaska to California Video: China’s Parched North Water crisis What has led to some of China’s water scarcity problems?

3 Water Transfer projects in China
Demand from industrial centres, high population density and intensive agriculture. Low rainfall and over abstracted groundwater: physical scarcity Originally planned 1952, started 2002, due to finish Chief player: Government sponsored ‘South to North Water Transfer Project Company, with each province having a local water company. Involves huge civil engineering works, 3 major canals, pipelines, tunnels, pumping stations

4 China: the North/South water divide
VIDEO: Great Chinese Drought continuing What are some of the causes and consequences of the drought problems in Northern China mentioned in the report?

5 Water Management Spain Case Study
Local water resources are intensively exploited 70% of land surface in Spain semi-arid climate zone Recurring droughts Strong seasonal variability of rainfall Agriculture Tourism The expansion of water supply by construction of dams has come to an end 1,300 dams in Spain Spain is the country with the 4th largest number of dams Some aquifers are overexploited Climate change will further lower the natural supply of water Low water prices hold back the development of unconventional supply sources

6 Water Management Spain Case Study

7 The Colorado River: A Case Study
Video: The Colorado: a river in peril? 0’52 Video: Colorado River: America’s Most Endangered River 2013

8

9 The Colorado River Most endangered river in the U.S.
Most dams, supplies the largest portion of the population Irrigates the most crops Increasing water supply problems in California Climate change Less run-off from melted snowcaps Longer and more severe droughts Population growth Mostly in arid south Immigrant populations looking for farm work Infrastructure Ageing pumps and aqueducts = environmental havoc Region contains richest farmland in the country Major food supplier of the U.S. Agriculture Accounts for % of employment

10 Colorado River Basin

11 Water Security: a definition
“The capacity of a population to safeguard sustainable access to adequate quantities of acceptable quality water for sustaining livelihoods, human well-being, and socio-economic development, for ensuring protection against water-borne pollution and water-related disasters, and for preserving ecosystems in a climate of peace and political stability.”

12 The risks of water insecurity
What are the potential implications of an increasingly ‘water insecure’ world? Water supply problems Increasing water shortages may be more important than energy shortages- because there is no alternative! Water conflicts Where demand exceeds supply and no effective management operates, then there will be conflicts between the various players involved Water geopolitics The conflicts between nation states, despite the international agreement called the Helsinki Rules designed to create more equitable use of water extending across boundaries Water transfers Of this precious resource by either diverting the actual river, or using canals . Long carried out at a small scale but increasingly over larger distances, and even transboundary

13 NPR : Water the Epic Struggle
Water Scarcity NPR : Water the Epic Struggle

14 Water Food Energy A Delicate Balance Water is needed to grow food
Energy is needed to clean and transport water Food transports (virtual) water Water is needed to generate energy Energy is needed to produce food Food can be used to produce energy

15 Water-Energy Interdependence
Energy and Water: Solving Both Crises Together: Water and energy are the two most fundamental ingredients of modern civilization We consume massive quantities of water to generate energy, and we consume massive quantities of energy to deliver clean water There are tensions between the two: water restrictions are hampering solutions for generating more energy energy problems, particularly rising prices, are curtailing efforts to supply more clean water

16 Reading Homework IB Geography text (pp. 1-3 on California)
EU spotlight turns on Spain


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