Climate Change

3. Increase in earths temperature
5. A system of living organisms
9. Layer of gas surrounding Earth
12. Main greenhouse gas produced by cattle
13. Oceans are becoming more ____ because of global warming
15. the variety of life forms found on Earth
19. The amount of greenhouse gases that are produced in our day-to-day lives through the burning of fossil fuels
20. _____ Gases that trap heat
22. Caused by global warming
24. The process in which much of the sun's energy(heat) is kept inside our atmosphere
26. Long-term, average weather

1. 'hot' structure - one of the natural causes of climate change
2. Energy sources we burn
4. Short-term conditions of the atmosphere
6. to move from one area and settle in another
7. Over the last 100 years, we've observed that the global sea levels are
8. The measure that tells us how hot things are
10. When a species disappears forever
11. The fall of rain, snow or hail
14. A greenhouse gas; Levels of this gas have increased by approximately 80% since 1970.
16. The main causes of accelerated climate change
17. a prolonged period of below average rainfall
18. The cutting down of forest trees
21. one impact of climate change is an increase in natural_____
23. Earths largest carbon sink
25. a renewable form of energy provided by the sun