GLOBAL HEATING - What is Greenhouse Effect?

Normal Performance of Greenhouse Effect

               In this project, Greenhouse Gases is the set of gases that go to hold back the radiation in the Earth, necessary to keep warm its temperature, the sufficient to keep the existing forms of life, leaving to pass a great part, that would be harmful, in return for the space.
http://cordelim.net/getIm.php?s=7Q8.r.SrUw&x=0&y=0

               If the Earth was not covered by an air mantle, the atmosphere would be too much cold, and the conditions created there, because of that would be hostile to the life, as we know it, which is so fragile that a small difference in the initial conditions of its formation would be enough so that we could not be here, arguing it.

               The Greenhouse Effect is a form that the Earth has to keep its temperature constant. The atmosphere is highly transparent to the solar light, however about 35% of the radiation that we receive goes to be reflected of new for the space, being the others restrained 65% in its surface. This owes mainly to the effect, on the infrared rays , of gases as the Dioxide of Carbon (CO2), Methane (CH4), Nitric Oxides or Nitrous Oxide (N2O) or hilariant gas and CFC’s (CFxCLx) present in the atmosphere (totalizing less than 1% of this), that go to hold back this radiation in the Earth, transforming it into heat. The Greenhouse Effect consists, therefore, basically, in the action of the Carbon Dioxide and other gases on the rays reflected for the surface of the Earth , redispatching them for the space, thus keeping, in normality conditions, a steady temperature in the planet. But if the layer of the Gases of the Greenhouse Effect becomes very thick, due to the excess of concentration of the same ones, the reflecting capacity is also very raised, hindering that this radiation crosses it. And , transforming it into infrared rays, returns them of this form for the surface of our planet, increasing the heat, harming the life existing on it.

               In recent years, the concentration of carbon dioxide in the atmosphere has increased about 0,4% annually; this increase owes must to the use of oil, gas and coal and to the destruction of the tropical forests. In this rhythm and with the massive discouragement of forests that we have practised (inhibiting the phenomenon of the photosynthesis, which increases the amount of arbon dioxide - C02 - in the atmosphere and diminishes the amount of oxygen - O2 - in the same one, process observed lately in the plants and kelps), it can come to be caused an increase of the globe temperature, be esteem between 2 and 6 ºC in next the 100 years, also destroying marine seaweed and “plancton”.

               In summary, photosyntheses is the process through which the autotrophic plants (beings that produce its proper food) and some other organisms transform luminous energy into chemical energy processing the carbon dioxide (CO2), water (H2O) and minerals in organic composites and producing oxygen gaseous (O2).

The Photosythesis Processing in one plant     dióxido de carbono = carbon dioxide vapor de água = water steam água = water luz solar = solar light oxigeno = oxygen gaseous savia elaborada = elaborated sap savia bruta = uncut sap sales minerales = mineral salts                  The enzymes are essential element for this transformation. If there is radiation excess, and, therefore, of light, it diminishes its capacity, therefore it has denaturalization of the same onesJoined to the extreme radiation, s also harms the submarine alimentary chain.                  The plant removes water of the land, through the roots, that go up for the stalk , at the same time the leves take off from the air the carbon dioxide, that goes down for the roots. The incidence of the light, added to the meeting of these two substances, is a chemical process, through which is formed its food, the organic composition carbohydrate, and oxygen molecule is released (during that processing). fitoplancton and the kelp also make photosynthesis, in similar process.

Photosynthesis is the process where the plant reflects the light. It also occurs in the marine way, for the seaweed and fitoplancton.                  Of the limitant factors of the photosynthesis, the main one is extreme concentration of CO2, excessively high temperature, excess of luminosity, and high luminosity combined with rise of the CO2 level. This effect also happen in the seaweed.                  As general rule, photosynthesi is given in leves. In the xerophidic plants (of barren region), the leves are presented in form of thorns and the photosynthesis is gone to make through its stalk that is very succulent.                  As the more CO2 concentration occurs in the atmosphere, in reason of the greenhouse effect , more difficult it becomes the photosynthesis, process that liberates O2 . And, added to this, the destruction of bushes, little absorption of the CO2 happens and little release of O2.   The formula of the photosyntheses is the following one:                    In the deep one of the sea also necessary CO2 for the photosyntheses exists, and, in normal conditions, the light crosses the way water uniform - for intermediary it fitoplancton is that form 80% of the existing oxygen in our atmosphere there. This C02 exists in reason of sea petroliferous reserves and other organic fósseis. The exploration of these goods has increased the amount of CO2 in the sea, at the same time where the effect greenhouse has increased the luminosity, what diminishes, doubly, the photosyntheses of fitoplancton.                  In the deep of the sea also exists the necessary CO2 for the photosyntheses , and, in normal conditions, the light crosses the y water in uniform manner – through fitoplancton 80% of the existing oxygen in our atmosphere is formed. This CO2 exists in reason of sea petroliferous reserves and other organic fossiles . The exploration of these goods has increased the amount of CO2 in the seas.At the same time the effect greenhouse has increased the luminosity has increased too. That conjoined action diminishes, doubly, not only the photosyntheses of fitoplancton, but the food chain also.

               The concentration of greenhouse gases that contribute for the Effect of Greenhouse, such as the methane and the clorofluorcarbonetos (CFCs) and nitric oxides, had also increased quickly. The joint effect of such substances can come to cause an increase of the globe temperature, esteemed between 2 and 6ºC in the next 100 years, also destroying marine seaweed and “plancton”.

              Marine clam with sells and chorales, amongst the creatures most beautiful of the ocean, run the risk to be dissolved for the same CO2 increase that cause the global heating. The CO2 absorbed for the seas increases the acidity in the water, that is corrosive. Therefore, the animals, as that dived in vinegar, become themselves more vulnerable. One study of the University of Illinois foresees a new wave of extinctions. ( News in “O Globo” , by 2007,March,13, in Rio de Janeiro) .

See more :
http://www.siu.edu/~perspect/02_fall/foram.html ;
http://whyfiles.org/218glo_warm/
http://www.agu.org/sci_soc/prrl/jh010604.html
http://www.sciencedaily.com/rss/index.php?section=Earth+%26+Climate&keyword=Snow++And++Avalanches
http://www.nyas.org/ebrief/miniEB.asp?eBriefID=498
http://www.care2.com/c2c/groups/disc.html?gpp=61&pst=799855
www.ametsoc.org/amsnews/newsreleases.html - 60k
www.siu.edu/~perspect/02_fall/foram.html

              A heating of this order of magnitude will not only go to modify the climates level in world-wide , as well as will go to increase the average level of waters in the sea , at least 30 cm, what it will be able to intervene with the life of millions of people inhabiting the lower coastal areas. Even being an alteration of few degrees, this would take to the thawing of polar ice caps and to great alterations on topographical and ecological ways of the planet.

See More:
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http://pt.wikipedia.org/wiki/Di%C3%B3xido_de_carbono
http://educar.sc.usp.br/licenciatura/2003/ee/Efeito_Estufa.html
http://noticias.pluc.com.br/showarticle.php?articleID=992
http://www.feiradeciencias.com.br/sala02/02_100.asp
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www.somosamigosdelatierra.org/00_imagenes/inv...
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