| Environmentally friendly prefix |
| Conversation is ___ in which a man has all mankind for his competitors": Ralph Waldo Emerson |
| Air-conditioning refrigerant causing environmental concerns |
| Activist who helped found the International Campaign to Ban Landmines |
| Animal rights activists' concerns |
| Part of Ralph Kramden's laugh |
| Activist for farm workers |
| Acted in an environmentally conscious way |
| Activist who's the focus of "An Inconvenient Sequel": 2 wds. |
| AIDS activist Arthur |
| Longtime Mets announcer Ralph |
| Activist who had Raiders |
| Acronym used to protest environmental hazards nearby |
| Actor/singer/athlete/activist Paul |
| Another name for opportunity," per Ralph Waldo Emerson |
| Folksinger/social activist Joan |
| Activist who said "My religion has no geographical limits |
| Environmental activist, and the letters changed in the theme answers |
| Environmental transition area |
| Activist/heiress Hearst |
| Activist with Raiders |
| Advocate-turned-presidential candidate Ralph |
| Activists? |
| Activist's focus |
| Activists' handouts |
| Be a good environmentalist |
| Animal rights activist Cleveland __ |
| Bureaucratic environmental regulations |
| Activist Dana or her husband Christopher |
| Primitive artist Ralph et al. |