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Across 4. temporary atmospheric conditions 5. effective 6. to do with water 9. atmospheric conditions over a long period of time 10. mark we make on the earth, also a measurement 13. traps heat 17. the ability of an ecosystem to function effectively 19. nature provides us with ecological _______________ 21. a resource that can be replaced 22. layer of gases surrounding the Earth 24. discharges 25. to do with the whole planet

Down 1. Rising temperatures causes this to happen to coral reefs 2. CH , greenhouse gas 3. variety of plant and animal life 7. heat from inside the Earth's crust 8. sufficient 11. contamination 12. something that can continue into the future 14. increased 15. heating 16. lessen 18. too much pressure on something 19. to do with the sun 20. ____________protocol 23. coal and oil are examples of this type of fuel