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Green House Effects

About green house effects and global warming. More about green house effects.
by

Dristti D

on 9 April 2013

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Transcript of Green House Effects

To conclude Green House Effects An atmospheric heating phenomenon, caused by short-wave solar radiation being readily transmitted inward through the earth's atmosphere but longer-wavelength heat radiation less readily transmitted outward, owing to its absorption by atmospheric carbon dioxide, water vapor, methane, and other gases; thus, the rising level of carbon dioxide is viewed with concern. By: Dristti Wadhawan
Grade IX What is Global Warming? Global Warming is the increase of Earth's average surface temperature due to effect of greenhouse gases, such as carbon dioxide emissions from burning fossil fuels or from deforestation, which trap heat that would otherwise escape from Earth. This is a type of greenhouse effect. What is Green House Effect? Continuation.. CO2 tends to remain in the atmosphere for a very long time (time scales in the hundreds of years). Water vapor, on the other hand, can easily condense or evaporate, depending on local conditions. Water vapor levels therefore tend to adjust quickly to the prevailing conditions, such that the energy flows from the Sun and re-radiation from the Earth achieve a balance. CO2 tends to remain fairly constant and therefore behave as a controlling factor, rather than a reacting factor. More CO2 means that the balance occurs at higher temperatures and water vapor levels. -Most greenhouses look like a small glass house. Greenhouses are used to grow plants, especially in the winter. Greenhouses work by trapping heat from the sun. The glass panels of the greenhouse let in light but keep heat from escaping. This causes the greenhouse to heat up, much like the inside of a car parked in sunlight, and keeps the plants warm enough to live in the winter.
-The earth's atmosphere is all around us. It is the air that we breathe. Greenhouse gases in the atmosphere behave much like the glass panes in a greenhouse. Sunlight enters the earth's atmosphere, passing through the blanket of greenhouse gases. What is greenhouse effect and how does it works? http://dictionary.reference.com/browse/greenhouse+effect

http://www.nmsea.org/Curriculum/Primer/Global_Warming/fossil_fuels_and_global_warming.htm

http://hyperphysics.phy-astr.gsu.edu/hbase/thermo/grnhse.html

http://www.eia.gov/oiaf/1605/ggccebro/chapter1.html

http://www.preservearticles.com/2012031026181/what-is-greenhouse-effect-and-how-does-it-works.html Bibliography -The most significant greenhouse gas is actually water vapor, not something produced directly by humankind in significant amounts.
-However, even slight increases in atmospheric levels of carbon dioxide (CO2) can cause a substantial increase in temperature. -First, although the concentrations of these gases are not nearly as large as that of oxygen and nitrogen (the main constituents of the atmosphere), neither oxygen or nitrogen are greenhouse gases. This is because neither has more than two atoms per molecule (i.e. their molecular forms are O2 and N2, respectively), and so they lack the internal vibrational modes that molecules with more than two atoms have. Both water and CO2, for example, have these "internal vibrational modes", and these vibrational modes can absorb and reradiate infrared radiation, which causes the greenhouse effect. What are Green House Gases? Physics-ICT
Green House Effects
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