Across
- 3. this is melting
- 8. a small percentage of agriculture produces this
- 10. this is sprayed on to crops
- 11. we all produce too much of it
- 13. coal, oil, gas
- 14. a colourless, odourless, incombustible gas
- 17. an alternative type of commerce
- 19. it's in the air
- 20. cities become this when there is too much pollution
Down
- 1. it is getting warmer and warmer
- 2. we throw this away every time we buy something new
- 4. cars, trucks and factories give these off
- 5. genetically modified organism
- 6. capable of decaying through the action of living organisms
- 7. this is happening to parts of the coast
- 9. which can be restored so it can be used again
- 12. domestic or industrial waste which is carried into sewers
- 15. there is a hole in it
- 16. the consequence of cutting down lots of trees
- 18. the conversion of sunlight into electricity