Resource security Flashcards
What does the EIA do?
Process of evaluating the environmental and human consequences of a project and modifying the project to reduce impacts
Why do places use the EIA?
- Legal requirement (EU directive)
- TNCs, better reputation
What are 6 stages of EIA?
1) Outline development
2) Describe environment
3) Assess impacts (Leopold Matrix)
4) Consider modifications
5) Publish environmental statement
6) Decision made and monitored
Give an example of where EIA was used
Grasberg mine:
- check air/noise pollution
- dereliction
- aesthetic problems
What 3 physical factors affect water supply?
- Climate
- Geology
- Drainage basin
How does geology affect water supply?
Impermeable rock - higher quantity, worse quality
Permeable rock - lower quantity, better quality as filtered through percolation (aquifers)
Some rock type contain salt and minerals making not potable
How does climate affect water supply?
Precipitation - can be unpredictable (Monsoon)
Evaporation- loss of water
How does drainage basin affect water supply?
Larger drainage basin > collect more water
What human factors affect water supply?
- Urbanisation
- Agriculture
- Population growth
- Climate change
How does urbanisation affect water supply?
Impermeable surface - aquifers won’t recharge and sewer overflow
How does agriculture affect water supply?
Eutrophication - leeching form excess minerals
How does population growth affect water supply?
Increase demand :
- Mexico 73% of water from groundwater so are reliant
- Overabstartion means being depleted faster than recharge
How does climate change affect water supply?
Areas reliant on snowmelt will not receive enough due to lack of snow build up
What is OPEC?
13 member countries which produce 40% of the world’s crude oil but control 72% of its reserves.
How has OPEC impacted on global energy supply?
- 1973 oil shock - in response to US support for Israel during the Yom Kippur war OPEC stopped oil supply to countries supporting Israel
- Oil prices rose from $25.97 (1973) > $46.65 (1974) > $70.62 (2018)