Across
- 2. The natural circulation of nitrogen among the atmosphere, plants, animals, and microorganisms that live in soil and water
- 3. The temperature in the top several feet of the ocean, measured by ships, buoys and drifters.
- 6. A prolonged period of excessive heat, often combined with excessive humidity
- 7. Materials that are biological in origin, including organic material (both living and dead) from above and below ground, for example, trees, crops, grasses, tree litter, roots, and animals and animal waste.
- 10. Adjustment or preparation of natural or human systems to a new or changing environment which moderates harm or exploits beneficial opportunities.
- 13. Those practices or processes that result in the conversion of forested lands for non-forest uses
- 14. Any process, activity or mechanism which removes a greenhouse gas, an aerosol or a precursor of a greenhouse gas or aerosol from the atmosphere
- 16. A general term for organic materials formed from decayed plants and animals that have been converted to crude oil, coal, natural gas, or heavy oils
Down
- 1. Cities with populations over 10 million
- 4. Underground deposits of gases consisting of 50 to 90 percent methane (CH4) and small amounts of heavier gaseous hydrocarbon compounds such as propane (C3H8) and butane (C4H10).
- 5. Perennially (continually) frozen ground that occurs where the temperature remains below 0ºC for several years
- 8. The total amount of greenhouse gases that are emitted into the atmosphere each year by a person, family, building, organization, or company.
- 9. Water that has been used and contains dissolved or suspended waste materials
- 11. The amount of solar radiation reflected from an object or surface, often expressed as a percentage.
- 12. Land waste disposal site in which waste is generally spread in thin layers, compacted, and covered with a fresh layer of soil each day
- 15. warming The recent and ongoing global average increase in temperature near the Earths surface.