Across
- 3. one of the 3 r's
- 5. effect warming of atmosphere
- 8. ecosystem dominated by soft-stemmed vegetation
- 10. council that fights deforestation
- 11. change of climate
- 12. ecosystem dominated with trees
Down
- 1. poison in the atmosphere
- 2. dirty air
- 4. forest land to non-forest use
- 6. removal of layer of topsoil
- 7. water in permable rock layers
- 9. international agreement