Paper 2 Flashcards
Exploitation Of Resources Examples?
Deforestation in Cameroon,
Oil extraction in Ecuador,
Overfishing in North Sea.
Rainfall Imbalance In Uk?
Supply highest in North and West,
Higher rainfall rates linked to relief,
Demand highest in South East (London) but has driest climate,
This leads to problems of storage and transfer,
Costly to move water over big distances,
Ageing pipe network,
Reservoirs help, e.g. Staines reservoir near Heathrow.
Ageing Infrastructure In UK?
12% London’s water mains are 150 years old,
Thames Water has replaced over 1300 miles of old pipes and has implemented the London Main Ring,
50m water tunnel that forms a complete ring around the capital carrying 1300 million litres a day.
Deforestation In Cameroon?
Shows exploitation of resource use,
Key forest area with biodiversity including 800 plant species and 250 species of mammal,
48% is rainforest,
1% cut down every year for palm oil and other uses,
Deforestation causes soil erosion, e.g. heavy rain washes away exposed farming soil vital for subsistence farming.
Oil Extraction In Ecuador?
Shows exploitation of resources,
Oil extraction in the Northern Amazonian rainforest region of Ecuador,
Resulted in significant problems linked to extraction,
Pipelines have cracked and oil waste pits have overflowed,
Rivers have been polluted and ecosystems have been damaged.
Overfishing In North Sea?
During last 50 years has depleted fish stocks,
Particularly cod and herring,
300,000 tonnes of cod in 1970 fell to 20,000 in 2006.
Spanish Costas?
Seasonal imbalance,
High demand in summer months where water activity’s are popular,
Lowest rainfall totals in summer,
Wettest months in Nov-Feb but the demand is low.
Water Supply Issues In Emerging/Developing Countries - Access To Clean Water?
Less than 65% of some populations in Africa and Asia have access to clean water,
This is related to economic and physical water scarcity,
Situation is worse in rural.
Water Supply Issues In Emerging/Developing Countries - Water Borne Diseases?
Huge issue,
Normally where unhygienic,
Standing water,
E.g. microorganisms that live in water can lead to disease or illness such as cholera, dysentery or typhoid.
Water Supply Issues In Emerging/Developing Countries - Pollution Of Water?
Oil exploitation in Ecuador - Texaco dumps 18 billion gallons of dirty production water into streams and rivers,
Texaco created unlined sludge pits where poisons deep into ground water,
This affected neighbouring Peru - the Achuar Tribe (Ecuador),
Health of the people declined.
Water Supply Issues In Emerging/Developing Countries - Annual Rainfall?
Some parts of Sahel,
Long term drought,
Chronic water shortages for Sahel countries such as Chad, Mali, Niger and Senegal.
Developed Country - Managing Water?
UK,
Water meters,
Shirt flush toilets,
Water butts in garden,
Hose pipe bans in hot weather,
Using water efficient appliances - they’re in all new homes.
UK Water Issues Facts?
Rainfall varies from 1500mm in North West to 625 in South East,
12% London’s pipes are over 150 years,
40% are over 100 years,
Lack of investment.
China Water Facts?
1500 deaths a year from floods,
Pollution - 70% of china’s rivers and lakes are polluted,
Population is highest in North East - over 200 per square km,
1 billion people,
Drought - West central and north east China, 18m people experienced water shortages.
Uk Facts Managing Water?
9 July Hosepipe ban came after North West’s driest start to a year since records began in 1929,
Saved 3 billion litres from hosepipe ban,
Water metres reduce use by 10/15% per house,
Thames Water replaced 1300 miles of pipe,
Ring Main,
Government passed policies saying business must provide a 25 year plan which shows sustainable water management,
Companies are also set efficiently targets which are monitored every year - leakage of water has reduced by 35% since this law.