Climate change

4. very dry and less dense layer
9. the area between the stratosphere and upper troposphere, due to the similar temperatures.
10. permanent layers of ice covering a tract of land, especially in the polar regions.
11. are losing 286Gt/year.
15. air we breathe and weather
17. frozen sea water that floats on ocean surface
18. solar radiation passes through atmosphere and warms earth
19. involves adjusting our lives and society to the expected future climate.
20. Earth’s overall surface temperature is lowered enough that glaciers form at the poles and in mountainous areas.

1. weakened the greenhouse effect due to the removal of carbon dioxide and oxidation of methane.
2. drilled into the glaciers in antartica and greenland
3. was a period of cooling that lasted from the 16th-19th centuries.
5. ones that were released by human activity.
6. strategies are designed to reduce emissions and stabilize the levels of greenhouse gases already in the atmosphere.
7. the study of intentionally and artificially changing natural processes of the Earth.
8. are darker areas on the sun’s surface created by intense magnetic fields.
12. plants only use this
13. thin layer of gases that surrounds earth
14. like land ice, are shrinking worldwide.
16. the tendency of water to expand in volume as it warms.