Climate Change
Across
- 2. from 4.6 billion to 540 million years ago, the Earth’s atmosphere was mostly carbon dioxide and nitrogen.
- 4. Designed to reduce emissions and stabilize the levels of greenhouse gases already in the atmosphere.
- 7. darker areas on the sun’s surface created by intense magnetic fields.
- 8. thin layer of gases that surrounds the earth
- 11. Earth’s overall surface temperature is lowered enough that glaciers form at the poles and in mountainous areas.
- 13. hemisphere is facing the sun, about half of incoming solar radiation passes through the atmosphere and warms the Earth.
- 15. has a much thinner atmosphere, with no greenhouse effect.
- 17. very dry and less dense layer above the troposphere.
- 19. lasted between about 950-1250 C.E., with warmth in some regions exceeding the current post-industrial era.
Down
- 1. adjusting our lives and society to the expected future climate.
- 2. weakened the greenhouse effect due to the removal of carbon dioxide and oxidation of methane.
- 3. do not change day-to-day
- 5. any permanent layers of ice covering a tract of land, especially in the polar regions.
- 6. contains the air that we breath and all aspects of weather
- 9. was a period of cooling that lasted from the 16th-19th centuries.
- 10. change in amounts depending on the seasons and other factors.
- 12. study of intentionally and artificially changing natural processes of the Earth.
- 14. the area between the stratosphere and upper troposphere, due to the similar temperatures
- 16. frozen seawater that floats on the ocean’s surface.
- 18. they absorb and retain carbon dioxide from the atmosphere