Across
- 2. This fossil fuel has been on the decline lately.
- 5. Alternative to fossil fuels.
- 10. Increased acidity in the oceans.
- 11. Energy source that replenishes itself.
- 13. Organization focused on protecting the environment.
- 17. Natural disaster caused by too much water.
- 18. Device used to harness solar energy.
- 19. Renewable source of energy from the movement of air.
- 21. A molecule of 3 oxygen atoms bounded together.
Down
- 1. Renewable energy powered by the heat of the Earth's core.
- 3. Carbon-containing compounds which have been transformed through geological processes.
- 4. Ocean levels are _____ due to global warming.
- 6. Extreme weather event with high wind speeds.
- 7. Most common greenhouse gas.
- 8. Renewable source of energy powered by sunlight.
- 9. Energy efficient light bulb.
- 12. Electric car company founded by Elon Musk.
- 14. Natural process in plants that absorbs carbon dioxide.
- 15. Transitioning to a low-carbon economy.
- 16. Campaign to plant more trees.
- 20. A natural disaster caused by the lack of water.