Across
- 4. unofficial SSLA mascot; probably is seen in classrooms more than you
- 5. Is a greenhouse gas; produced by cows and natural gas drilling
- 8. A layer of soil that remains frozen for at least two years
- 9. Turning trash into treasure
- 10. The process of planting trees to restore a forest
Down
- 1. Human-caused damage to soil, leading to erosion and loss of productivity (2 words)
- 2. The process by which fertile land becomes desert due to human activities
- 3. Renewable energy source that taps into the heat of the Earth's core
- 6. Travel that promotes conservation and sustainability
- 7. A famous Bollywood actor hunted this animal in 1998