| emission-free(adjective, nature, characteristic, environment) |
| environment-friendly(adjective, nature, characteristic, environment) |
| environment-oriented(adjective, nature, characteristic, environment) |
| environmental(adjective, nature, characteristic, environment) |
| environmental responsible(expression, nature, characteristic, environment) |
| environmentally-appropriate(adjective, nature, characteristic, environment) |
| environmentally-clean(adjective, nature, characteristic, environment) |
| environmentally-friendly(adjective, nature, characteristic, environment) |
| environmentally-green(adjective, nature, characteristic, environment) |
| environmentally-safe(adjective, nature, characteristic, environment) |
| environmentally benign(expression, nature, characteristic, environment) |
| environmentally compatible(expression, nature, characteristic, environment) |
| environmentally compliant(expression, nature, characteristic, environment) |
| environmentally friendly(expression, nature, characteristic, environment) |
| environmentally neutral(expression, nature, characteristic, environment) |
| environmentally preferred(expression, nature, characteristic, environment) |
| environmentally pristine(expression, nature, characteristic, environment) |
| environmentally safe(expression, nature, characteristic, environment) |
| environmentally sensitive(expression, nature, characteristic, environment) |
| environmentally sound(expression, nature, characteristic, environment) |