Mind map

What happens when demand for water exceeds supply?

Rachael Dwight Geography Key Stage 3 English

Map content

Cost of water may increase where demand exceeds supply
Decrease in crop yield - reduction in food and therefore food prices increase impacting poor people more
May revert to using unclean water - increased illness and disease
import water
Could cause conflict and fighting over access to water
Overabstraction - lakes and rivers dry out e.g. Aral Sea
Case study - Aral Sea
- water diverted to grow cotton crop in USSR
- Loss of fishing industry as Sea dried up
- Water in sea became toxic due to increased salt conc and run off from fertilisers
- Out migration
- collapse of primary industry
  - loss of jobs & income
- Death
Case study: Lake Chad
- Drying up - contributing to desertification in the region
  - Lower crop yields
    - less money & jobs
  - water prices increase so poorest dont have access