Table 1.
Symbols for environmental impacts and the actors and forces that affect them, exemplified by energy emission
| Category | Symbol | Actors | Dimension |
|---|---|---|---|
| Impact | I | All | Emission |
| Population | P | Parents | Capita |
| Affluence | A | Workers | GDP/capita |
| Intensity of use | C | Consumers | Energy/GDP |
| Efficiency | T | Producers | Emission/energy |
| Consumption/capita | A × C | Energy/capita | |
| Consumer challenge | P × A × T | GDP × (Emission/Energy) | |
| Technology challenge | P × A × C | Energy | |
| Sustainability challenge | P × A | GDP | |
| Sustainability levers | C × T | Emission/GDP |