the challenge of resource management Flashcards
what is the significance of food for our social well being
- needed for survival
- creates jobs through trade and growth
- nutrition and improves peoples overall health
what is the significance of water for our social well being
- needed for survival
- involved in manufacturing, food, cleaning and disposal of waste
- clean water reduces risk of disease and reduces pressure on hospitals
how much water does the average person use a day in the UK
150 litres
what is the significance of energy for our social well being
- countries abundant in energy products eg coal or oil can trade it around the world
Why is the demand for water growing
- population increase
- wealth more water intensive appliance
- showers and baths
- industrial production
Where is the wettest area in the UK
The west
Where is the driest area in the UK
South east
Why does the west have water surplus
Higher rainfuall levels, lower population density
Why is the south east in water deficit
Higher population density lower rainfall
What are the economic issues with building a water grid
Very expensive
What are the social opportunities with the water grid
Communities would need to be displaced
What are the environmental opportunities with the water grid
Destroy habitats
What are the causes of water pollution
- chemical pesticides
- oil from ships
- untreated waste
- sewage pumped into rivers and seas
Effects of water pollution
- kill aquatic life
-lead to eutrophication - drinking water can be poisoned
- fisherman and tourism can suffer economic loss
How is water quality managed
- law in the uk
- waste water treatment plants
- investing in sewers
- education campaigns about water waste
What was the UKs energy mix
In 2015
- mainly fossil fuels
- just over 1/5 of renewables
Why has coal mining become less economical
- harder to access, required more machinery and people
- cheaper to import
Why did the coal mines close down
- ran out or became exhausted
- EU and UK closer for environmental awareness
Where are the reserves of gas and oil
North Sea
Why is food consumption increasing with economic development
- people can afford more foods of greater variety
- more meat in diets as money is needed to take care of the animals
- demand from processed foods increase
In china how much did meat consumption increase
6% to 17% in 2010
Why is food consumption increasing with population growth
- bigger stress to feed everyone
- mainly in LICs as birth rate is increasing rapidly
- African population is growing 2.5% annually
What factors affect food supply
Climate
Technology
Pests and diseases
Water stress
Conflict
Poverty
How does famine affect people
Weakens immune systems
More prone to disease
Less able to work
Decreases income
How many people suffer from malnourishement
800 million
How does rising prices of food affect people
Poorest people cannot afford basic food
Can cause social unrest and riots
How is soil erosion effect people
Over cultivation with lack of rainfall leads to soil erosion
Soil is infertile and unable to grow crops
No crop yeild and no income
What strategies increase food supply
Irrigation
Aerophonics and hydrophonicd
New green revolution
Biotechnology
Appropriate technology
Facts about Almería
- arid region in Spain
- largest concentration of greenhouses
- 26,000 hectares
- 50% of europes produce is grown here
Advantages of Almeria
- uses drip irritation reduces water uses and waste
- warm temperatures reduces the need for energy intense heaters
- provides jobs
- provides fruit and veg all year round
Disadvantages of Almeria
-Immigrant labour is low paid and poor working conditions
- plastic coverded can end up in oceans
- natural water sources under stress
Examples of sustainable food supplies
Organic farming
Permaculture
Urban farming
Fishing sustainably
Meat sustainably
Seasonal food
How much food is wasted
Almost 1/3 of all food
How to reduce food waste
- refrigerated storage
- education
- improving transport
How many people work in agriculture in Bangladesh
65.5%
Which charity helps farmers in Bangladesh
Practical action
What is the rice fish scheme
- small fish introduced into rice paddy’s
- fertilise the rice
- increase protien in diets
- increase rice yield
- able to sell excess
How much food contributes to C02 emissions
17%
What are agribusinesses
Farms being run by large businesses to increase food production
