Environmental Crossword Puzzle

Down

1. illegal hunting
2. notable greenhouse gas
3. catalytic agent in ozone destruction
4. Aldo Leopold believed that moral values requires a Land ___
6. term for the totality of all ecosystems of a planet
7. term for oxygen loss in lakes or seas, often from too much nutrients
8. describes a form of pollution that cannot be traced to a single source
11. increase in Greenhouse gases is causing global ______
13. protocol to curb CO2 emissions the USA did not ratify
14. loss of this is a sign of a degrading ecosystem
16. produced when sulfur-dioxide emissions react with water-vapor in clouds
17. principle driving force behind many environmental issues
19. livestock denuded a landscape
23. poorly planned or inefficient development of land

Across

5. transforming arable land to desert, oft via destructive land use.
9. term for exotic species that displace or disrupt established ecosystems
10. threat to genetic integrity from cross-breeding with engineered plants
12. Loss/fragmentation of this is oft a primary threat to endangered species
15. when chemicals become concentrated in the top of a food chain
18. HR3824 is more aptly known as the _____ Bill
20. a ____ zone forms along the Texas coast as a result of over fertilization
21. accidental release of hydrocarbons that can cause quick and devastating pollution
22. device used with nets to prevent accidental sea turtle deaths
24. loss of this habitat is considered a major factor in shoreline erosion
25. results when logging harvests all trees in an area
26. soil loss; often from poor land-use practice
27. EPA program that cleans industrial pollution sites, bankrupt since 2003