Climate Change

4. glaciers and ice are ____
8. weakened the greenhouse effect
9. the air we breathe and every aspect of what we call weather
10. this frequency and intensity has increased since the 1980s
12. darker areas on the sun's surface created by intense magnetic fields
15. where atmospheric carbon dioxide levels are measured
16. the thin layer of gases that surrounds the earth
17. earth's surface temperature is lowered
19. Great ocean ___ belt is an underwater current fueled by cold and warm water
20. the measurement of how reflective a surface is

1. a main greenhouse gas
2. warmer temps have increased the range of what
3. 78.1% of gas in the atmosphere
5. a main proxy
6. these eruptions release sulfur dioxide and particles that scatter solar radiation
7. very dry and less dense layer above the troposphere
11. what temperatures have increased since the industrial revolution
13. earth's atmosphere was mostly carbon dioxide and nitrogen
14. the United States sets this up in 1988 to assess climate change
18. frozen sea water that floats on the ocean's surface