What are resources?
Resources- Materials that are needed for basic survival or improve quality of life
Key resources- Food, water and energy- needed for human well being
Resource management- The control and monitoring of resources so that they don’t become depleted
Surplus- Having a higher supply than demand
Deficit- Breeze Brewin
Carbon footprint- The measure of the impact that human activities have on the environment.
Demand- The amount of a resource which is needed by an area.
Consumption- The amount of a resource that is used.
Food insecurity:
Food insecurity lead to famine and undernutrition
Food deficits cause famine:
This causes death
malnutrition, which weakens immunity and makes people more vulnerable to diseases.
Deficiency diseases (e.g. anaemia)- can hinder the physical and cognitive development of children.
Between 2012 and 2014, 805 million people suffered from chronic undernourishment.
791 million of there’s people lived in LICs
Causes of food insecurity
Over grazing:
Overgrazing by cattle and other farm animals also leaves the soil exposed.
Once the soil has no vegetation to hold it in place, it can be blown or washed away, so causing soil erosion.
Making the land infertile
Dependency on cash crops:
LICs best land is used to grow cash crops (To export)
This leaves less suitable land to grow the local population’s food supply
This land quickly becomes infertile a it lacks proper nutrients for plant growth
Causing food shortages, and famine.
Rising prices
A prices increase regular families can’t afford nutritious food
leading to undernutrition and poor diets if healthy foods can’t be afforded
AO1: Food demand
In 2013, 47% of all food was imported to the UK
AO1: UK carbon footprint
Carbon footprint- The total amount of greenhouse gases (like carbon dioxide) emitted by an individual, organization, product, or event
The further a product travels, the higher the food miles and the higher the emissions.
Food makes up 17% of the UK’s overall carbon footprint.
This is made up of areas such as production agriculture which is the largest at 46%. (1 mark for data and description)
Transport only make up 11% of carbon footprint created by food this is 35% less than production. (1 mark for data manipulation)
Food that is perishable and have a high value relative to their weight are transported by planes. As this ensures a quick transfer before it perishes, However planes generate 100 times more emissions than boats when transporting food.
Meaning that transport for food imports create lots of carbon dioxide
What are the alternatives to importing food:
Eat seasonal produce grown in the UK
Eating locally produced food
Grow food at home or on an allotment
Limit imports of food that can be grown in this country
Water demand:
Water transfer scheme – to move water from an area of surplus to an area of deficit.
Growing crops increase water demand for things like irrigation projects
Kielder Water Reservoir, Northumberland is a water storage and transfer scheme:
It is 12km long and 55m deep
It costs £167 million to build and was completed in 1982
It was built to meet the expected increase in water demand from increasing population and from the steel and chemical industries
Problems with water transfer:
Droughts due to removing water
Environmental impact on the river.
Rehouse local people
Dams block water flow and stop animals migrating
Carbon emissions from pumping water
water use has increased by 70% since 1985 and this is due to a number of reasons:
Flushing the toilet uses up to 12 litres
Technology like a dual flush toilet could reduce water because it limits it to 5L by place air bags into tank.
Water the garden with a hose can use 1000 litres per hour.
Watering with a watering can will reduce because this only uses 10 litres per can
Baths can hold 80 litres of water.
Showers over 10 minutes use 120 litres of water
Consumer demand in the UK affects what is imported. Some non seasonal goods come from Kenya. Identify the advantages and disadvantages for Kenya.
adv:
Jobs are created
Better wages
Increased taxes for facilities
dis:
Less land to grow food on
Huge amount of water needed
Large numbers of people exposed to chemicals in pesticides
Organic produce is grown with a type of farming which does not use any chemicals such as pesticides or fertilisers.
Dairy e.g. milk, cheese and yoghurt are the best examples of organic goods.
Coal from 34% in 1980 to 12.5% in 2020 |
The graph clearly fluctuates over the 9 years but overall shows an increase.
(Basic description)
The highest amount of sales was 2007/8 at £2.1 billion
(Data)
The range of the sales was 0.5 billion pounds.
(Data manipulation)
Use the figure to describe the contribution of food to the UK’s carbon footprint.
( 3 marks)
We just saw that the generally the further the distance the higher the emissions.
fracking
A way of obtaining gas that is locked in rocks thousands of metres below the Earth’s surface.
How does Fracking work?
A hole is drilled deep into the rock and a mixture of sand, water and chemicals are injected into it at high pressure splitting the rock and releasing the gas.
Energy resources:
Fossil fuels
Advantages- produces a lot of energy at relatively low costs.
Disadvantages- Running out and produces greenhouse gases.
Nuclear energy-
Advantages- Cleaner than fossil fuels and produces a consistent source of energy.
Disadvantages- Uranium is finite so it is non renewable.
Renewable energy-
Advantages- Clean and non-polluting types of energy.
Disadvantages- The cost of researching and creating the new technology and is not consistent.
Compare and contrast the UK’s energy mix between 1980 and what is predicted for 2020.
Nuclear energy is similar in both at 6% in 1980 and 4% in 2020.
Oil is over 30% in both pie charts.
The biggest difference is coal going from 34% in 1980 to 12.5% in 2020.
Also renewables has increased dramatically from 2% to 12.5%.
water use has increased by 70% since 1985 and this is due to a number of reasons:
Wealth of people leading to more domestic appliances, e.g dishwashers
People now wash daily, previous households with no indoor bathrooms may have a weekly bath
Demand for out of season food requires more watering in a greenhouse
Industrial production
Leisure use, e.g. watering golf courses
Increased population
– more supply than demand often such areas receive high rainfall, but have a small population.
Companies would be forced to increase prices as cost of water increases. | In times of shortage, we could have community tanks at the end of each street, only the people on the street can use the water. |
Encouraging greater recycling of water – for example, bathwater can be recycled to flush the toilet. | Industries such as textile manufacturing which use large amounts of water would suffer. |
More reservoirs need to be built to store water, causing land to be lost, habitats destroyed and migratory birds disturbed | Promoting greater efficiency of the use of water use by charging people for the exact amount of water they use (water meter) - showering rather than baths etc. |
Transferring water to areas of demand can cause a change in mineral, nutrient and acidity content of the water influencing fish and plant life. | There will be less choice of food in our shops because water shortage means less food can be grown in poly-tunnels (or green houses). So there is greater reliance on seasonal vegetables. |
75% of ponds and floodplain grassland have been lost so reducing the UK’s natural water supplies | 1/5th of fresh water fish are endangered or extinct. |
The British government has considered setting up a national grid.
The UK’s energy mix biggest decrease | Coal from 34% in 1980 to 12.5% in 2020 |
Advantages of fossil fuels | Relatively cheap and reliable. |
Disadvantages of renewables | Research cost is high and not always reliable. |
What is fracking | A way of obtaining gas locked in rocks deep below the Earth’s surface using water, sand and chemicals. |
Kielder water C. An example of a water transfer scheme that cost £167 million but wasn’t necessary.
Success criteria
Identify an activity in the home
Offer a solution (its normally some sort of technology)
Use the word because to say how this would reduce water usage.
How does water pollution affect the UK
What determines the amount of food available per person in a country?
Create a list of human or physical factors that change the amount of food available per person.
Human factors
Population size
Economic development
Technology
Conflict
Physical factors
Climate
Pests and diseases
Water availability
Environmental impacts of food insecurity
Where cash crops are grown in both LICs and HICs, the increased use of pesticides and fertilisers to produce a large healthy crop can cause water pollution.
It can also increase the demand for water for irrigation and lead to water shortages.
Water shortages and pollution can also have an impact on the indigenous wildlife habitat.
social impacts of food insecurity:
Rising prices
A shortage of food can lead to an increase in prices. Rises in food prices locally can often be caused by global events, such as the poor grain harvests in Russia, Australia, and Pakistan in 2010. This led to a ban on exports of grain from Russia, so causing a reduction in the supply of grain and a rise in global prices. In LICs, the shortage of food can cause prices of basic foodstuffs such as rice and maize to rocket and become out of reach for the average family. While not suffering from famine, people are suffering from undernutrition and the diseases associated with poor diet, as they cannot afford to access nutritious food.
Conflict and social unrest
The increased competition for scarce food resources can lead to conflict in both local and international communities.
domestic markets.
Irrigation
Aeroponics
Hydroponics
The green revolution
Biotechnology
Appropriate technology
ao1 about almeria:
In the last 35 years, this area has developed the largest concentration of greenhouses in the world, covering over 26,000 hectares.
The scheme brings in over US$1.5 billion per year in income, as it delivers over half of Europe’s fruit and vegetables.
The average temperature in the region is 20 °C with about 3,000 hours of sun per year, meaning that the crops can be grown in the winter without artificial heating, unlike other areas in Europe (the Netherlands), so reducing costs
Task: The exam question has asked you to explain the advantages not evaluate them. This means we don’t need a judgment only an explanation of what makes them good or bad.
In the last 35 years, this area has developed the largest concentration of greenhouses in the world, covering over 26,000 hectares.
This is an economic advantage as working on this scale will bring down the cost of food or increase profit.
If you did need to evaluate you could say
this is important in the long term as money can be invested in producing more food for future generations.
Task: The exam question has asked you to explain the advantages not evaluate them. This means we don’t need a judgment only an explanation of what makes them good or bad.
The scheme brings in over US$1.5 billion per year in income, as it delivers over half of Europe’s fruit and vegetables.
The average temperature in the region is 20 °C with about 3,000 hours of sun per year, meaning that the crops can be grown in the winter without artificial heating, unlike other areas in Europe (the Netherlands), so reducing costs
Classics list:
John coltrane
Miles davis
Bill evans
Ronnie foster
lonnie liston smith
Oscar peterson
Herbie Hancock
Quincey jones
ronnie carter