Related Clues:
- 'Silent Spring' spray
- Bug spray no more
- '50s crop spray
- EPA-banned insecticide
- Subj. for nature lovers
- Sierra Club concern (abbr.)
- EPA concern of the 1970s
- Sci. with biomes
- Outlawed organochlorine
- Subj. of interest for the Green Party
- Biodiversity sci
- Substance banned by the EPA
- Climate change subj
- Banished bug spray
- Conservation subj