Global Warming Awareness 2007

Globalwarming-Awareness2007

Globalwarmingawareness2007

The effect of greenhouse

Contest referencing SEO for Google and Yahoo : globalwarmingawareness2007 - The effect of greenhouse - Sites qui participent à globalwarming-awareness2007

There exists little of international contests globalwarming-awareness2007. This is why, when one decides to create an international contest globalwarming-awareness2007, it appears significant to take into account those which exist, in order to avoid the redundancies and to widen the proposals, as well on the level of the public concerned, the topics approached as dates of limit of participation suggested.

To choose principal competence that one wants to judge, secondary competences and the topic of the contest globalwarming-awareness2007, in fo nction of the teaching interest and the diffusion of the language and the culture Frenchwomen like according to the constraints and the internal and external requirements.

To choose the name of the contest global warming awareness 2007. This stage is more significant than it does not appear, since the name must give desire for taking part in the contest. It must thus have two functions, to be inciting and informative. If one observes the names of the existing international globalwarmingawareness2007 contests, one notices that they have similarities.

The standard name informs on: Public concerned (example:young person, French-speaking person), the task requested (example: Correspondences of classes, Write to me a poem), judged competence (example: Writer, pencil box). To encourage the public to take part, the standard name, refers to the voyage (example: Reporters, correspondences), with the play (example: Contest, olympiades) and with the victory (example: However, price).

To choose the type of public which will be solicited, according to the vocation of the organizing structure and the objectives to be reached. Certain public are not touched by the contests globalwarming-awareness2007. It would be thus judicious to think of them when one decides to create a contest.

To choose the type of participation according to the topic of the contest, the type of evaluation and the number of gifts.

To define the calendar, according to the public and of its requirements, of the duration necessary to inform, make the file, to select the prizes winner and to give the prices.

Then do not hesitate any more take part in the contest of referencing SEO globalwarming-awareness2007

The effect of greenhouse:

Solutions considered

1. SOLAR ENERGY: The fall of interest of the public recorded these last years for solar energy is explained mainly by the fall of the courses of oil. This lapse of time however was made profitable to improve in a spectacular way the effectiveness of the solar cells. Thus, a recent number of the New York Times pointed out that, for the first time, "the production of solar electricity of origin could reach an output comparable with that of the energy production by the conventional methods". If this technique became really competitive, the replacement of the traditional power stations by solar power stations would contribute to reduce the gas emissions responsible for the effect of greenhouse.
2. HYDROGEN: To replace the petroleum products by liquid hydrogen like fuel for the planes and perhaps even cars, here is an idea which has at least the merit to be technically realizable. With regard to the effect of greenhouse, the combustion of hydrogen has the advantage of being very clean, since it does not release at all from carbon dioxide, but only of the vapor. Hydrogen has an excellent natural energy. Equal weight, it makes it possible a plane to steal three times longer than with kerosene. The problem is that it also costs three times more expensive. Moreover, one major disadvantage is that liquid hydrogen must be preserved at very low temperature and under pressure. Like showed it the explosion of the American space shuttle Challenger, any escape in the system is likely to have catastrophic consequences.
3. SPACE SHIELDS: The idea was launched to deploy in the space of immense "plastic film parasols", which would project gigantic zones of shade on the ground. To compensate for the doubling envisaged of carbon dioxide, it would be necessary that the scale of these satellites represents 2 % of the surface of the sphere. Such a program would not be at all taste of the astronomers!
4. WORLD AFFORESTATION: Do you know that there are already machines to purify the atmosphere of carbon dioxide? what are these machines extremely powerful, nonpolluting and which they discuss all alone? They are the plants. The house plants absorb carbon dioxide, that they use for their needs, and reject oxygen. Logically, the rise in the content carbon dioxide should stimulate the vegetable growth on all planet, which, in return, should contribute to absorb the carbon dioxide surplus and to control the effect of greenhouse. Force is unfortunately to note that, when it is a question of plants, logic hardly takes into consideration. The trees are the plants which have the greatest capacity of extraction of carbon dioxide per hectare, and it is them, precisely, whom one destroys at intervals frightening everywhere in the world.
   In front of this universal phenomenon, many men of science preach a massive afforestation to fight the effect of greenhouse. They point out, for example, that the plantation of 4 000 000 of hectares of forests would make it possible to absorb all the carbon dioxide which the power stations will reject during ten next years. Last year, at the same time, the American Senate discussed various programs aiming at achieving this goal, programs whose cost would rise to several billion dollars.
   Perhaps could such a project lead to the United States, but which are its chances of success in the tropical countries? Under these latitudes where desperate and famished people destroy the trees to cultivate the ground, the calls in favour of the afforestation hardly find echo. By their production of oxygen, the tropical forests however constitute one of the lungs of planet, which does not prevent that they are mutilated, burned, not massacred.This lung is it dedicated to death?
5. DESTROYING CFC RAYS: Since the ground, one could direct towards the sky of the giant lasers adjusted on absorbable energy frequencies by chlorofluorocarbon gases. The objective would be to destroy the CFC molecules before they do not reach stratosphere and do not attack the layer of ozone. The cost and the power of the lasers necessary to this project pose problems. According to Thomas Stix, physicist at the university of Princeton, it would also be necessary to be sure "that the frequency of the laser absorptive by CFC is not it also by other molecules, like the vapor of water and carbon dioxide".
6. SATELLITE SOLAR POWER STATIONS: Giant panels of solar cells deployed in space could collect solar energy 24 hours a day, without being obstructed by the clouds or the night. Energy would be then sent towards the ground in the form of microwaves or by laser beams. The idea is to resort to solar energy in order not to burn more fossile fuels. The technical difficulties and the extent of the project are however décourageantes.

Voici les sites qui participe au concours global warming awareness 2007