Resources And Sustainability Flashcards
Resources
Things a country can use such minerals, fish, timber (also Human Resources, financial resources)
Natural resources
Resources which come from nature and are not man-made.
Renewable resources
Can replenish/replace themselves eg trees.
Non-renewable resources
Can only be used once and do not replace themselves eg coal.
Depletion
Reducing by a large amount so that there is not enough left.
Poaching
Catching wildlife or marine life illegally.
Black market
Illegal buyers/sellers who buy/sell goods that have been poached.
Vulnerable
Able to be harmed easily (verge of becoming extinct)
Desertification
When soil becomes so infertile that nothing will grow in it.
Soil erosion
The removal of soil by natural forces such as wind and rain.
Sustainable development
Development that meets the needs of the present in such a way that the future generations will still benefit from development.
Carrying capacity
Maximum number of animals per hectare that a piece of land can support.
Organic
Farming without substances like pesticides and weed killers.
Bio-degradable
Substances that can be broken down into natural substances without harming the environment.
Carbon footprint
The amount of carbon an individual, business or country produce over time.
Food security
When all people at all times have access to sufficient, safe nutritious food to maintain a healthy and active lifestyle.
Genetic modification
Changing the genes of plants by cross pollinating.
What is used to determine carbon footprint?
The total amount of greenhouse gases produced to directly and indirectly support human activities, usually expressed in equivalent tons of carbon dioxide.
What is used to determine your carbon footprint?
The sum of all emissions of carbon dioxide, which were induced by your activities in a given time frame. Usually a carbon footprint is calculated for the time period of a year.
What are some examples of natural resources?
Minerals, soil, forests, fish stocks, wildlife etc.
When does development occur?
Not only just because a country has resources, it depends on how well they use them.
What are examples of renewable resources?
Sun, wind, wood
Why is wood a renewable resource?
A new tree can be planted to replace the one cut down.
What does unwise use of resources mean?
Using them too rapidly or wastefully.
What is over-exploitation?
When resources are being used up very quickly.
What does over-exploitation cause?
Depletion of resources eg overfishing.
Overfishing (3)
Large quantities caught
Numbers depleted
Not enough fish to reproduce
What are reasons for overfishing? (3)
Increase in the population, new fishing techniques and poaching.
What is poached in South Africa?
Abalone and lobster are sold on the black market by organized criminal gangs.
What are the effects of over-fishing? (2)
Industries collapse and jobs are lost.
Certain species of fish become vulnerable eg codshark, blue fin tuna.
What do regulations limit?
The number of boats that can go to sea and the amount of time they can spend fishing.
What limits the number of fish that can be caught?
Catch limits or quotas.
What are the three colour coded lists fish have been classified into?
Green, orange red?
What is the green classification of fish?
Most sustainable choice from healthiest and best managed populations.
What is the orange classification of fish?
Species is depleted from overfishing and cannot sustain current fishing pressure.
What is the red classification of fish?
Includes unsustained species and illegal species to sell.
How can you lower your carbon footprint?
By walking, cycling, public transport etc.
What is a carbon audit?
A way that businesses can see how much they have reduced their carbon footprint by.
How can businesses reduce their carbon footprint? (3)
Growing food and serving locally produced food.
Composting organic waste and recycling.
Using alternative energy eg solar.
What is the worlds population?
Over 7 billion
What is food security?
When all people at all times have access to sufficient, safe, nutritious food to maintain a healthy life.
What else does food security mean?
They have physical and economic access to food that meets both their dietary needs and their food preferences.
What can food security be threatened by? (3)
Natural causes eg floods, frost, hail, storms, drought.
Diseases in plants and animals.
Peoples activities such as overfishing.
What is the biggest threat to global food security?
Climate change.
What will climate change affect for global food security? (5)
Where crops can be grown.
What crops can be grown.
Where livestock can live.
Carrying capacity of land - livestock numbers.
Sea temperature and survival of fish stocks.
