| Energy source | Inherent | Avoidable | ||
| Global | Local | Global | Local | |
| Coal | CO2 | Mining | Acid rain | Air pollution |
| Oil | CO2 |
| Ocean Pollution | Air pollution, local water resources |
| Gas | CO2 |
| Greenhouse gases due to leaking pipelines |
|
| Hydropower |
| Aquatic ecosystems/Competition with other water usage |
| Aquatic ecosystems/Competition with other water usage |
| Nuclear | Non-Proliferation |
|
| Radioactive waste |