Across
- 2. The critical limit—cross it, and things change fast.
- 3. Spotting a problem before it grows bigger.
- 5. What you do with waste when you’re done with it.
- 9. When wind or water slowly steals the earth away.
- 12. To purify a raw material, often with environmental costs.
- 13. Plant food that sometimes causes trouble downstream.
- 16. Keeping a close eye on things, often with technology.
- 18. A fancy word for any kind of stuff falling from the sky.
- 21. Turning a polluted place back into a safe one.
Down
- 1. When something unwanted or dangerous sneaks in.
- 4. A chemical solution for unwanted bugs.
- 6. A visible trail of smoke, dust, or pollution.
- 7. When the ground suddenly sinks beneath your feet.
- 8. The more species, the merrier (and healthier) the ecosystem.
- 10. A scientific guess about tomorrow’s weather.
- 11. Actions taken to make disasters less disastrous.
- 14. A technical way to say “flooding.”
- 15. When disease or disaster spreads rapidly.
- 17. The measurable result of your hard work in the field.
- 19. When pests invade in overwhelming numbers.
- 20. What’s left behind after a disaster.