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Resource
Any aspect of the natural environment that can be used to meet human needs
Resource Security
The ability of a country or region to safeguard a reliable and sustainable flow of resources to maintain the living standards of its population, while ensuring ongoing economic and social development
Exploitation
The action of using natural resources to the fullest or most profitable use
Exploration
The process of searching an area with the intention of finding and mapping natural resources
Reserves
The part of a resource that is available for use under existing economic and political conditions and with available technology
Resource Frontier
A newly colonised region where resources have been discovered and are brought to production for the first time
Resource peak
This marks the point in time when the maximum production rate of a resource occurs
Flow resources
Renewable resources and can be replaced, expressed in annual rates of regeneration
Critical Flow resources
Renewable resources that have to be manually replaced
Stock Resources
Non-renewable resources which can be permanently expended, expressed in absolute amounts
Measured Reserves
If economically viable - measured reserves are known as proven reserves and can be extracted with the greatest degree of confidence
Indicated reserves
Degree of assurance is lower than for measured reserves but high enough to establish estimates of quantity, known as probable reserves
Inferred resources
Due to uncertainty, little to no information for estimation, not viable to mine so known as possible reserves
Hypothetical resources
Undiscovered materials that are reasonably expected to exist in known mining regions under known geological conditions
Speculative resources
Undiscovered material materials that may occur in known types of deposits in geological settings where no previous discoveries have yet been made
Cycle of natural resource development - Exploration
of potential sites can take a number of years, testing for presence and then quality
Cycle of natural resource development - Assessment
Discoveries have to be fully evaluated to determine their viability for production, followed by an EIA
Cycle of natural resource development - Construction
Extraction infrastructure is put in place
Cycle of natural resource development - Operation
Extraction of resource until there are no more viable reserves to exploit
Cycle of natural resource development - Closure
In some cases secondary sites are put in place to extract what’s left of a resource
Cycle of natural resource development - Reclamation
Regeneration of land to rectify environmental damage
Factors affecting time of resource peak
Levels of consumption, world prices of resources, exploration efforts, advances in technology
Physical Risks
Related to the accessibility of available resources in an area evaluated against quantity and quality, location and technology
Geopolitical Risks
Concentration of production in small number of nations, probability of conflict
Peak Production curve
A way to display a resource peak graphically
Peak oil in USA - original peak
70s as underestimation in advances of technology and efficiency
Peak oil in USA - Reason for boosted production in 90s
Development of Alaskan oil field and Trans-Alaskan pipeline
Peak oil in USA - technology impacts
Allowed for the continued development and exploitation of unconventional reserves
Peak oil in USA - 2015 peak back to 70s levels
Due to Shale oil
Supply side management
Methods to increase the supply of a resource
Demand side management
Methods to reduce consumption of a resource
Cost-Benefit analysis
A systematic analysis of advantages and disadvantages likely to result from a development project, where an objective value is allocated to all economic, social and environmental aspects affected
EIA uses
To identify and understand the environmental consequences of a project
Who undertakes the EIA
Speciallist environmental consultants
Potential impacts considered for open-pit copper mine EIA
Aesthetic problems, water pollution, air pollution, toxic waste, noise pollution, dereliction
EIA stages - Initial outline of development
Description of the site construction, identify sources of distrubance
EIA stages - Survey of existing conditions
Identify potentially affected features
EIA stages - Assessment of impacts
Identifies significant impacts
EIA stages - Modifications to mitigate impacts
Alternative methods/solutions offered
EIA stages - Statement published
Non-technical summary published for public consultation, cost-benefit analysis conducted
EIA stages - Decision by relevant authority
Right to appeal available
Water Security
The capacity of a population to safeguard sustainable access to water
2025 Water Security Prediction
1.8B people living in countries with water scarcity, 2/3 of the world in water stressed areas
Water Sources - surface water supplies
Rivers and resevoirs
Water Sources - Underground stores
Groundwater aquifers
Water Sources - Sea water
Only viable after desalination
Water Demand - Agriculutural use
Irrigation of crops, cleaning livestock
Water Demand - Industrial and commercial use
Coolant in electrical systems, heating, construction and transport, paper manufacture
Water Demand - Domestic use
Drinking, food preparation, personal hygiene
Water Demand - Developing and emerging economies
Heavily Agricultural, often less rainfall so higher demand for irrigation
Water Demand - Europe
Affluent and industry is advanced, higher usage in industry and in the home
Water Stress
Imbalance between water used and resources available
Water availability to be water stressed
Less than 1700m³ per yer
Water stress impacts on freshwater supplies
Over abstraction from rivers and freshwater sources, organic pollution
Climate impact on water supply
reliable annual rainfall and storage can increase supply
Geology impact on water supply
Suitable geological structures are needed for water to be naturally stored in different ways
Drainage impact on water supply
Provides easily accessible source of surface water
Negative impacts on rivers and lakes from abstraction
Reduced downstream flow impacting habitats, decreased discharge and increased sedimentation, impact on soil quality
Factors allowing abstraction on rivers and lakes
River discharge - annual flow must be adequate, variation in the flow risks economic viability, other uses – pollution/animals
Physical characteristics needed for an aquifer
Porous rock to hold fluids, permeable rock to allow infiltration, impermeable rock below to prevent loss
Topography needed for resevoirs
Long narrow basin for low SA:V, minimising population loss
Negative impacts of resevoirs
Habitat loss
Geology needed for reservoirs
Impermeable rock to prevent leakage, must be stable to prevent earthquake damage
Catchment Area needed for reservoirs
Large to increase volume for storage
Water Supply needed for reservoirs
Sustainable flow of water upstream
Flow Fluctuation needed for reservoirs
Cooler areas have less evaporation but more freezing
Physical factors influencing water availability
Latitude, continentality, winds, rainfall
Human factors effecting water availability
Treatment facilities, overuse, discrepancies in infrastructure across rural and urban areas
Water shortage locations
Rapid population growth - Sub-Saharan Africa - 376m without safe water
Water Surplus locations
Temperate and tropical areas - Americas and Europe, good management - USA
Water scarcity locations
2019 (WRI) 1.8B living in water scarcity - N Africa, Central Asia, ME, SS Africa
Economic water scarcity
Water is available but lack of funds to exploit it
Water demand in North America
Agriculture, personal hygiene, maintenance - >1000m³ per year, highest per capita usage
Water demand in W and Central Asia
Agriculture, cotton and cereal production, personal hygiene - >1000m³ per year
Water demand in Sub-Saharan Africa
Unreliable rainfall, lack of infrastructure, mainly agricultural - lowest per capita use <100m³ per year
Hydropolitics
Conflicts over water
Causes for water conflict
No alternative, shared resource
Transboundary river basin
Basin shared between nations
Transboundary river basin risks
Without agreement conflict over use can arise
UN prediction
60 conflicts could arise over fresh water disputes
Berlin Rules on Water Resources
Nations are required to take necessary steps to sustain and manage water reserves and minimise harm to the enviroment
Potable water
Drinking water
Improvede drinking water
Source of water that by using treatment is protected from external contamination especially from faecal matter
Safe drinking water
Water safe for human consumption free from harmful pollutants and bacteria
Catchment management
Increasing total amount of water available, through increased efficiency, abstraction..
Storage by reservoir and dam
Increasing and managing water supply by storing water
Diversion and inter-basin transfer
Transferring water from one catchment in surplus to another in scarcity
Desalination
Removal of salt from sea water, through reverse osmosis or distillation, expenisive
Strategies to reduce domestic water use
Water meters - people pay for exactly what they use providing an incentive not to waste, dual flush toilets, showers>baths, water efficient utility machines
Strategies to reduce agricultural water use
Drip feed irrigation, soaker hoses allow a more even distribution of water, overhead mist sprinklers, mulching soil, organic fertilisers, subsurface drainage, stormwater and runoff collected in ditches and drains, watering plants at cooler temperatures
Virtual water trade uses
Economies with less water bring in high water content products, and export low water content products
Virtual water trade
Water used in production process of agricultural/industrial goods is quantified when water is traded
Conservation Measures - Controlling land use
controlling what infrastructure/practises can happen in an aea
Conservation Measures - Ecological management
Using vegetation cover to reduce runoff and replenish the water table
Conservation Measures - Afforestation
Planting trees to intercept water
Greywater recycling
Collecting and reusing water that doesn’t contain faecal matter for use in toilets/agriculture, putting less strain on non potable sources
Water Recycling
Extensive sewage (and other human sources of water) treatment
Groundwater Management
Diversion of natural water from rivers, wells and artificial infiltration into groundwater aquifers to replenish stocks
UN prediction for 2050
5 Billion affected by water insecurity
Water Futures - Economic
Virtual water trade, water shipping and water management, will become significant when water is more valuable than oil