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Archives :

mai 2010

mai18

WWF by Juliette...

WWF, one of the biggest foundation that protect the nature and the environnement, like you've never seen before.

 

         You all know this foundations, you all like their panda bear. Yes it's the WWF foundation. WWF or Worl Wide Fund for Nature is and internationnal foundation that protect the nature and the environnement. It was created in 1961 by Sir Julian Huxley, Sir Peter Markham Scoot, Guy Mountfort and Max Nicholson and it's now directed by Emeka Anyaoku, a nigerian diplomat. He is the foundation's president since 2001.

         This foundation have for misson to check the application of the international and national regulations. They do some scientific study for some diagnosis or propositions. They restore some degraded natural spaces, they train and raise every public of any age to the environment (biodiversity, global warming, threatened sort, pollution, industrial undertaking concern of the fauna and the flora : sustainable development, attitude eco-citizen, wood and forest, sea and ocean, fresh water, ecological footprint, etc.)

         The foundation's members give some money to the foundation, like that the foundation is able to do all the stuff that the gotta do.

         The WWF's slogan is "For a living planet".

         Make sure to check their website : www.wwf.fr

mai18

Wind turbines by Pauline...

Wind turbine

 

A wind turbine is composed of a tower, 3 blades and a nacelle with all the mechanism. The wind turns the 3 blades and leads an engine wich transforms the wind energy into electricity. This electricity is stocks in batteries or sents to the electricity network of the companies of electricity. A wind turbine is very ecologic because it reject no pollution and it makes renewable energy. On a year, it works 3000 hours and produces 2 or 5 Megawatt. Every wind turbine reduces 20% of the CO2 emissions normally rejected. Wind turbines are placed on big zones without obstacles to get the wind : in the sea(offshore), on big lands, in mountains... You can have your own wind turbine but it's very expansive.

But there are a lots of disadvantages like: the landscape, the place, the aerial traffic, the noise , the conservation of the site...

mai18

Solar panels by Tristan...

Solar panels

 

There are two types of solar panels:

The photovoltaic module and the solar water heating.

 

-The photovoltaic module kept the sun’s light to transform in electricity.It has an other name : PV module. It is use to supply electricity in the house. Its puisance is 100 to 200 watts per square meter.Yield is 10% to 2o%.

-The solar water heating kept the sun’s light to transform in heat.It is use to heat the water of the house or the swiming pool and the house.It has an other name : solar hot water.

Today there are solar panels on toys or on mole traps

mai18

Rustle the leaf... By Laurene

Rustle the leaf ;  an ecologic and humoristic cartoon

 

Rustle is an ecologic leaf and he speaks with his friend the acorn about the pollution. Rustle is sad and he things at the power of the nature indeed the power of the nature could change people. And the acorn answers that hitting them with rocks is outta the question. This is a question that all the nature search the answer.

Indeed enter the deforestation and the pollution the nature is very patient and she haven’t got a doctor for her ! The humains contribuate at the destruction of her. In paris there is 170 micrograms of dioxide per cubic meter in the sight. The pollution is everywhere.

Now there is more and more people who try to protect the nature and who militate against the deforestation but there was too much pollution before we realized it and now a big hole in the ozone layer threaten us. There is many solution for limit the pollution but no one to repair the problem already committed : there is Wind turbine,limitation of driving  in certain city has certain moment of the day and ofher things.


mai18

Trees by Baptiste...

Trees are very important for the future and for humanity. It produces oxygen in the world. LAter it can produce petrol for heating for example. There are less and less trees on earth because of deforestation. MEn literally destroyed forests all around the world. It's normal to cut trees to make paper but ot to destroy old and prcious wood for instance, or not to build buildings. I chose an association that fights against deforestation "11 secondes". Every 11 seconds a forest the size of a football field disappears in Amazonia. It's a challenge for J-Cristophe Durel.