| Early warning | GEO-7, GEO-1-6 |
| Early warning systems | GEO-7, GEO-1-6 |
| Earth jurisprudence | GEO-7 |
| Earth System | GEO-7, GEO-1-6 |
| Earth System Boundaries | GEO-7 |
| Eco-design | GEO-7, GEO-1-6 |
| Ecological footprint | GEO-7, GEO-1-6 |
| Ecological infrastructure | GEO-7, GEO-1-6 |
| Ecological value | GEO-7, GEO-1-6 |
| Economic activity | GEO-7 |
| Economic system | GEO-7 |
| Economy | GEO-7 |
| Ecoregion | GEO-7, GEO-1-6 |
| Ecosystem | GEO-7, GEO-1-6 |
| Ecosystem collapse | GEO-7, GEO-1-6 |
| Ecosystem degradation | GEO-7, GEO-1-6 |
| Ecosystem function | GEO-7, GEO-1-6 |
| Ecosystem health | GEO-7, GEO-1-6 |
| Ecosystem management | GEO-7, GEO-1-6 |
| Ecosystem resilience | GEO-7, GEO-1-6 |
| Ecosystem restoration | GEO-1-6 |
| Ecosystem services | GEO-7 |
| Ecosystem structure | GEO-7 |
| Ecosystem-based adaptation | GEO-7, GEO-1-6 |
| Ecotourism | GEO-7, GEO-1-6 |
| Effluent | GEO-7, GEO-1-6 |
| Electrification | GEO-7, GEO-1-6 |
| Emerging contaminant | GEO-1-6 |
| Emerging contaminants | GEO-7 |
| Emissions from agriculture | GEO-7, GEO-1-6 |
| Encroachment | GEO-7 |
| End-use strategies | GEO-7 |
| Endemic | GEO-7 |
| Endemism | GEO-7 |
| Endocrine disruptors | GEO-7 |
| Energy access | GEO-7 |
| Energy communities | GEO-7 |
| Energy footprint | GEO-7 |
| Energy intensity | GEO-7, GEO-1-6 |
| Energy poverty | GEO-7 |
| Energy transition | GEO-7 |
| Energy-intensive | GEO-7 |
| Environment | GEO-7, GEO-1-6 |
| Environmental assessment | GEO-7, GEO-1-6 |
| Environmental conservation | GEO-7, GEO-1-6 |
| Environmental damage | GEO-7, GEO-1-6 |
| Environmental degradation | GEO-7, GEO-1-6 |
| Environmental education | GEO-7, GEO-1-6 |
| Environmental flows | GEO-1-6 |
| Environmental footprint | GEO-7, GEO-1-6 |
| Environmental governance | GEO-7, GEO-1-6 |
| Environmental hazards | GEO-7 |
| Environmental health | GEO-7, GEO-1-6 |
| Environmental impact | GEO-7, GEO-1-6 |
| Environmental justice | GEO-7, GEO-1-6 |
| Environmental monitoring | GEO-7, GEO-1-6 |
| Environmental performance | GEO-7, GEO-1-6 |
| Environmental policy | GEO-7, GEO-1-6 |
| Environmental pressure | GEO-7, GEO-1-6 |
| Environmental quality | GEO-7, GEO-1-6 |
| Environmental sustainability | GEO-7 |
| Environmental tax | GEO-7, GEO-1-6 |
| Environmentally harmful | GEO-7 |
| Envirotyping | GEO-7 |
| Epidemic | GEO-7, GEO-1-6 |
| Epidemiology | GEO-7, GEO-1-6 |
| Equilibrium climate sensitivity | GEO-7 |
| Erosion | GEO-7, GEO-1-6 |
| Erosion risk | GEO-7, GEO-1-6 |
| Estuarine | GEO-7, GEO-1-6 |
| Estuary | GEO-7, GEO-1-6 |
| Ethics | GEO-7 |
| Eutrophication | GEO-7, GEO-1-6 |
| Evapotranspiration | GEO-7, GEO-1-6 |
| Exploitation | GEO-7 |
| Explorative scenario | GEO-7 |
| Exposure | GEO-7, GEO-1-6 |
| Externalities (environmental and health) | GEO-7 |
| Extinct in the wild | GEO-7, GEO-1-6 |
| Extinction debt | GEO-7 |
| Extreme events | GEO-7 |