Environmental Activism

2. - Another major objective of environmental activism.
4. - Species - Animals and plants threatened with extinction.
5. - Concept of preserving open spaces around urban areas.
6. - Environmental organization with a focus on conservation.
8. - Hazardous materials that prompted activism against pollution.
11. - Layer - Activists campaigned to protect this part of the atmosphere.
16. - U.S. president who established the Environmental Protection Agency (EPA).
17. - Influential book by Rachel Carson that ignited environmental awareness.
18. - Scientific study of the relationships between organisms and their environment.
19. - The planet that environmental activists sought to protect.
20. - Environmental degradation caused by harmful substances.

1. - Activism against the use of nuclear power and weapons.
3. - Prominent environmental organization founded in 1971.
7. - A growing concern in the '70s that remains a pressing issue.
9. - A person advocating for the protection of the natural world.
10. - One of the key goals of environmental movements.
12. - Efforts to preserve natural resources and biodiversity.
13. - Type of energy sources advocated by environmental activists.
14. - Environmentally significant ecosystem that gained attention in the '70s.
15. - Protection of pristine natural areas was a major concern.