Climate Change

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Across
  1. 2. The gradual increase in the overall temperature of the earth's atmosphere, mainly due to gases being emitted making the greenhouse effect trap in more heat.
  2. 5. A natural fuel such as coal or gas formed in the geological past from the remains of living organisms.
  3. 7. Any natural resource that can replenish itself in a relatively short period of time, usually no longer than the length of a human life.
  4. 8. Warmer periods between glacial periods (ice ages)
  5. 12. amount of carbon dioxide gas in the atmosphere; one of Earth's vital signs
  6. 16. the movement of carbon from the nonliving environment into living things and back
  7. 19. a period of colder global temperatures that features recurring glacial expansion across the Earth's surface
  8. 20. The amount of heat held in the ocean; one of Earth's vital signs.
  9. 21. A natural resource that is not replaced in a useful time frame.
Down
  1. 1. The average level of the ocean's surface at any given time; one of Earth's vital signs
  2. 2. average surface temperature of the Earth (including land and ocean temps); one of Earth's vital signs.
  3. 3. Greenhouse gas that comes from burning fossil fuels, leaking pipelines, fracking, cows, decomposition of once living things.
  4. 4. A measurement of the area of ocean where there is at least some sea ice; one of Earth's vital signs.
  5. 6. The production and discharge of something, especially gas or radiation.
  6. 9. Changes to the Earth's atmosphere including storms, rainfall and temperature that increase or decrease global temperatures.
  7. 10. A gas that contributes to the greenhouse effect.
  8. 11. The natural process by which the atmosphere traps some of the Sun's energy, warming the Earth enough to support life.
  9. 13. A fuel made out of things such as crops.
  10. 14. the size/amount of glaciers that spread over land in all directions; one of Earth's vital signs
  11. 15. A gas that currently contributes the most to climate change; most living things exhale/breathe out this gas, also produced by the burning of fossil fuels.
  12. 17. An area that absorbs more carbon than it emits. Ex: forest, because the trees absorb more carbon than they emit.
  13. 18. A gas in the atmosphere that contributes to global warming, weather, and climate.