Resource Security Flashcards
What are primary energy resources?
Wood, gas, oil, coal, hydropower and direct solar energy
What are secondary energy resources?
Thermal power stations and geothermal power stations.
Define primary energy?
Form of energy found in nature that has not undergone a transformation process
Define secondary energy?
Energy derived from a conversion process
What is wood energy?
Provides domestic heating and cooking. It is a critical resource.
Define resource
Any aspect of the natural environment that can be used to meet human needs, or accomplish an activity. Often an economic or productive factor.
Examples include: land, labour, capital, energy, management etc.
Define stock resource
Finite and non-renewable, they have taken millions of years to form and cannot be replenished. E.g. fossil fuels, gold, uranium, copper.
Flow resources
Can be continuously replenished within human timescales, making them renewable. e.g. wind, solar energy, tidal energy.
Define critical flow resource
Resources that require careful human management to ensure their continued availability e.g. water, trees
Resource? Stock resources classification
All deposits which may be viable to extract in the future
Reserve? Stock resources classification
Deposits of minerals which are being extracted now, due to being economically viable e.g. high demand
What factors will determine the availability of resources?
Physical availability: patterns and quantities
Economic viability: price makes it worthwhile?
Political/legal access: permission?
Environmental/sustainability concerns: damage to the environment from extraction?
Inferred resource?
The quantity is estimated on the basis of limited sampling into the geology. There is insufficient data to justify exploitation. Chance of 10% or greater that reserve is there.
Indicated reserve?
Estimated with a level of confidence through more extensive sampling. Evaluation of economic viability of deposits. Chance of 50% or more that mineralisation occurs.
Possible resource?
Indicative in situ information but without sampling. Insufficient reliable data to justify an exploration phase. The degree of mineral sampling is insignificant.
Measured reserve?
Well established and measured with confidence. Mine/quarry productive planning. Evaluation of the economic viability of deposits. Sufficient sample tests and 90% chance that mineralisation occurs.
What factors does mineral exploitation depend on?
The mineral content of the rocks: low grade = high waste and high grade often in more difficult environments
Geological conditions: shallow depth = open cast extraction which is cheaper. Ease of extraction.
Accessibility in relation to markets: lower value minerals are more strongly influenced by transport costs.
Physical risks?
Accessibility of the resource available. Depends on:
- the quantity of the resource that has been found
- its quality
- its physical location and accessibility
- technology available to access the resource economically
Geopolitical risks?
Concentration of production
Confidence in trading producers who will seek to exert their market power.
What is a resource frontier?
An area where a resource is brought into production for the first time
- peripheral environment
- natural environment with little human development
- extreme environments - technological challenges
- may be within international territory
What is a resource peak?
Marks the point in time where the largest production of a mineral resource will occur in an area, with production declining in subsequent years. Global extraction and production is becoming more challenging.
Define sustainable resource development
Development that meets the needs of the present without compromising the ability of future generations to meet their own needs.
Economically, socially and politically sustainable.
Give examples of supply side management
Seeking methods of increasing the supply of resource
Increasing exploration of existing resources
Increased research efforts to develop more sustainable alternative resources
New technologies that are more sustainable and cause less environmental impact.
Give examples of demand side management
Reducing consumption of resources
Changing individual behaviour to discourage wasteful resource use
Increasing efficiency of resource use
Recycling of resources
Regulatory controls as part of global governance e.g. Kyoto Protocol.