| Vocabulary | The Greenhouse Effect | Past Climate Change | Global Emissions | Miscellaneous |
|---|---|---|---|---|
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What are fossil fuels?
These are products of partial or complete decomposition of plants and animals that occur as crude oil, coal, or natural gas.
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What are H2O and CO2?
The two major greenhouse gases are _____ & _____.
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What are the earth's poles?
These regions of the earth serve as early indicators of global warming.
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What is the United States of America?
This nation contributes the greatest percentage of global CO2 emissions.
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What is ultraviolet radiation?
Less ozone in the stratosphere will allow more of this harmful radiation to reach the earth's surface.
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What is the Greenhouse Effect?
This is the natural effect that releases heat in the atmosphere near the Earth's surface.
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False
True or false: Most scientists dismiss the theory of the earth's natural greenhouse effect.
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What is Antarctica?
Seasonal ozone thinning occurs each year over this continent.
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What is Carbon Dioxide (CO2)?
In addition to fossil fuel burning, deforestation, agriculture, and other human changes in land use release this greenhouse gas.
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True
True or False: The U.S. Congress has not ratified the Kyoto Treaty.
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What is global warming?
Also referred to as the enhanced greenhouse effect, this term refers to the warming of the earth's atmosphere because of increases in the concentrations of one or more greenhouse gases.
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What are Carbon dioxide (CO2), Methane (CH4), Nitrous Oxide (N2O), Chlorofluorocarbons (CFCs), Hydrochloroflurocarbons (HCFCs), Hydrofluorocarbons (HFCs), Halons, and Carbon tetrachloride?
Name any one of 8 major greenhouse gases from Human Activities.
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What is Greenland?
The glaciers of this country, the world's largest island, are more likely to melt than Antarctica's western ice sheet because they are closer to the equator.
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What are coal-burning power and industrial plants or gasoline-burning motor vehicles?
This (source) is one of the two largest contributors to current CO2 emissions.
(Either one of two answers is acceptable) |
What are clouds?
50-55% of earth's albedo is reflected by this part of the earth and its atmosphere.
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What is albedo?
This term refers to the ability of a surface to reflect light.
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What is using conservation tillage to reduce or eliminate plowing,
retiring former cropland and leaving farmland untouched for at least 10 years, using cover crops in winter, or preserving buffer strips of trees along riverbanks?
Farmers can reduce greenhouse emissions by adopting well-known soil conservation methods such as _______.
(Any one of multiple answers is acceptable) |
What are glacial and interglacial periods?
Over the past 900,000 years, the average temperature of the atmosphere near the earth's surface has undergone prolonged periods of global cooling and global warming, called _____ and _____ periods, respectively.
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What is the Kyoto Treaty?
Under this convention, held in Japan in 1997, developed countries committed themselves to reducing their emissions of CO2 and other greenhouse gases in an international effort to slow global warming.
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What is increased incidence of skin cancer, eye cataracts, and immune system suppression or damage to crops and phytoplankton?
Ozone depletion could result in these possible consequences.
(Any one of multiple answers is acceptable) |
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What are CFCs (chlorofluorocarbons)?
These are organic compounds made up of atoms of carbon, chlorine, and fluorine. In the gaseous form, they can deplete the ozone layer when they slowly rise into the stratosphere and their chlorine atoms react with ozone molecules.
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What is the use of fossil fuels;
deforestation and clearing and burning of grasslands to raise crops; cultivation of rice in paddies; or use of inorganic fertilizers?
These are human activities that increase the input of greenhouse gases into the troposphere and could enhance the earth's natural greenhouse effect.
(Any one of multiple answers is acceptable) |
What is the analysis of...
plankton and radioisoptopes in ocean sediments; pollen from lake bottoms, bogs, and volcanic ash; ice cores from ancient glaciers; tree rings; radioisotopes in coral; historical records; and temperature measurements?
Scientists get information about past changes in the earth's climate by analyzing radioisotopes in rocks and fossils. Name one more method used to estimate past temperature changes.
(Any one of multiple answers is acceptable) |
What are the oceans?
These regions of the Earth help moderate the Earth's average surface temperature by removing about 29% of the excess CO2 we pump into the atmosphere as part of the global carbon cycle.
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What are coolants in air conditioners and refrigerators, propellants in aerosol spray cans, cleaners for electronic parts such as computer chips, sterilants for hospital instruments, fumigants for granaries and ship cargo holds, or bubbles in plastic foam
Protecting the ozone layer requires stopping the production of ozone-depleting chemicals, such as CFC's, which come from any one of these sources.
(Any one of multiple answers is acceptable) |
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