- A significant energy resource for many developing global markets
- Discarded for a reason – poor quality (high ash, low energy, high sulphur, fines, low volatiles)
- An environmental challenge but also contains significant amounts of useable coal (Low rank coal).
- A major concern to DERM/ Dept of Research and Resource Management because of future potential environmental impacts.
- One of the greatest polluters of the environment
- Subject to spontaneous combustion of discard material, which can emit harmful CO2 & SO2 gases
- A surface source of acid mine drainage
- Occupying significant parcels of useful countryside.
- Often millions of tonnes and when abandoned, remain as huge piles.
- A trap for solar heat, making it difficult for vegetation to grow, which results in erosion and creates dangerous, unstable slopes.