Climate Change

2. type of greenhouse gases released by human activity
5. type of carbon used by plants in photosynthesis
6. volcano that erupted in indonesia causing snow to fall in june in north america
7. animal population expected to decline by two-thirds by 2050
8. planet with a thin atmosphere and no greenhouse effect
11. what will occur from ocean levels rising and intrusion of ocean water?
12. process in which plants convert carbon dioxide into oxygen
15. darker areas on the suns surface
16. main proxy
17. the thin layer of gases that surround the earth
19. period of time where the earths overall surface temp is lowered enough for glaciers to form

1. frozen seawater that floats on the oceans surface
3. an underwater current fueled by the mixing of warm and cold salt water
4. a very dry and less dense layer above the troposphere
9. gas released from volcanic eruptions
10. permanent layers of ice covering a tract of land
12. indirect measurements
13. what is increasing worldwide due to melting ice sheets and thermal expansion?
14. land and ocean surface temps have done what since the industrial revolution?
18. is climate change real?