Across
- 2. One of the biggest environmental issues today
- 6. National Arbor Day always falls on this day
- 7. Month shared by Earth Day and Arbor Day
- 8. Famous conservationist whose birthday is April 22
- 10. First state to observe Arbor Day
- 11. 100 endangered species of this flower were planted in Panama for Earth Day
- 13. Primary component of natural gas
- 14. First Earth Day led to creation of this government agency (acronym)
- 17. Most common tree in the US
- 19. The US National tree
- 23. Most abundant greenhouse gas (2 words)
- 24. Direction in which Earth's magnetic pole is slowly creeping
- 25. Earth personified (2 words)
- 26. Last name of US journalist/politician who initiated Arbor Day
- 27. ____, reuse, recycle
- 28. Last name of young activist who took a zero-carbon voyage to raise climate change awareness
- 29. Tallest tree in the US
Down
- 1. 2024's Earth Day theme is "Planet vs. ______"
- 3. Region on earth producing 20% of the planet's oxygen
- 4. Organization that largely funded the first earth day (acronym)
- 5. The triple planetary crises: biodiversity loss, pollution, and ______ (two words)
- 9. Last name of US President who championed and globalized Arbor Day
- 12. Congressmen in 1970 with poor environmental records (2 words)
- 15. Book written by Rachel Carson in 1962 foretelling dangers of pesticides and other hazards
- 16. Significant climate agreement signed on Earth Day 2016
- 18. A common Arbor Day and Earth Day activity
- 20. Earth's largest living structure (2 words)
- 21. Synonym for Earth
- 22. Last name of senator who created Earth Day
- 30. Source of most of Earth's breathable air