Across
- 2. First celebrated on April 22, 1970
- 6. The study of the movement and distribution of water around the Earth
- 7. The protective layer in the stratosphere that absorbs most of the sun's harmful UV radiation
- 8. The Audubon Society is dedicated to the conservation of what species?
- 9. Japanese city for which a 1997 international climate agreement is named
- 10. Environmental activist Thunberg
Down
- 1. The largest living species of tortoise in the world is native to what island archipelago in the Pacific Ocean?
- 3. The process by which plants make food
- 4. ___ gas emissions
- 5. The 2006 documentary An Inconvenient Truth follows this former vice president's lectures about global warming