La lluvia ácida

La contaminación atmosférica se forma con la humedad del aire y el ozono formado por tres moléculas de oxigeno. Estos compuestos alteran la composición de las gotas de agua de la atmósfera que al precipitarse forman la lluvia acida. Algunos contaminantes no se mezclan con la humedad y caen directamente sobre el suelo, esto se conoce como deposición seca. La lluvia acida y la deposición seca afecta gravemente a los ecosistemas y provoca también la corrosión de metales, rocas y materiales de construcción.

                                                                                                                                                                                                             María González.
Editado por Laura.

¿Cómo reducir el efecto invernadero?

• Consumir menos combustibles fósiles. Se deberían sustituir por otros productos energéticos (energía solar y energía eólica). También habría que mejorar la eficiencia de los motores que los utilizan, para reducir dichos consumos. Individualmente podemos utilizar menos los coches propios y usar más el transporte público.
• Proteger la vegetación. Las plantas, sobre todo las grandes masas forestales, necesitan dióxido de carbono para su crecimiento. La fotosíntesis que realizan las plantas requiere de este gas, que se convierte por dicho proceso en materia orgánica. Por ello, mantener y ampliar las zonas de bosques es un modo de disminuir el efecto invernadero.

ESTO NO PUEDE SEGUIR ASÍ

Bruselas señala a España como país europeo más contaminante
    España ya es la oveja negra en materia de contaminación atmosférica a ojos de Bruselas. Así lo advirtió ayer un informe de la Agencia Europea de Medio Ambiente tras constatar que fue el único país de toda la UE que excedió los límites legales en la emisión de hasta tres de los cuatro contaminantes que controla la norma comunitaria. Otros 11 países incumplieron la ley al emitir más contaminantes de los permitidos pero ninguno con tantos frentes abiertos como España, destaca la agencia, según datos de 2010, los últimos disponibles. Es la primera vez que Bruselas compara los datos de contaminación recabados en los distintos países conforme a lo exigido en la ley comunitaria. El suspenso español ya se conocía por los datos que el Gobierno y las comunidades avanzaron el año pasado -Barcelona y, especialmente Madrid, son dos de las ciudades con más contaminación atmosférica del continente debido a la densidad del tráfico metropolitano-, pero la UE detalla ahora que los datos del país se hallan entre los peores de la zona. Se endurecerá la ley... Leer más.

Vista de Madrid cubierta por la contaminación.

presentación sobre el cambio climático por Adrian Martin y Rafa Rivero

Climate change

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Have you ever heard something about CFCs?

Chlorofluorocarbon (CFC), is a compound derivated from saturated hydrocarbon obtained by the replacing of hidrogen atoms by fluorine/chlorine atoms. They are used in several aplications, mainly in refrigeration and aerosols industry. CFC is also in thermal insulation. It can remain in the atmosphere from 50 to 100 years. CFC is been separated by the action of the UV in the stratosphere, and it destroys the ozone. The method of attack of CFC is a photochemical reaction. When the light hits a CFC molecule, it releases a chlorine atom that destroys the ozone atoms. Only a chlorine atom can destroy 30,000 ozone atoms.

Health and Pollution: Why you should be worried

Prolonged exposure to a contaminant in several years may reduce the life expectancy of a human. Contamination is a risk factor for the health of people, often resulting in diseases and other disorders.

Increasing levels of pollution in cities has been reflected in increased hospital admissions and registration of more cases of cardiovascular and pulmonary diseases.
According to the World Health Organization mortality has increased because of environmental pollution. States that pollution is one of the first health risks.

Some of the diseases caused by air pollution:

· Respiratory diseases such as pneumonia, bronchitis, asthma
· Viral diseases: yellow fever, hepatitis, dengue.
· High levels of air pollution related to PM2.5 particles, given off by diesel engines of cars, causing diseases of the circulatory system.
· The Spanish Group for Lung Cancer warning that "the high rate of pollution in cities increases by 20% the risk of lung cancer." The number of deaths from this disease has increased by 8% in the most polluted towns in Spain.
· It is considered that air pollution affects more industrialized countries. Not so that 80% of deaths in the world, this contamination occur in countries where there is pobreza.Las vunerables communities and poor use most polluting energies such as coal, dung and firewood for cooking and heating in their homes.

My Experience: A presentation on climate change

My experience was very gratifying. The truth is that we go out with little fear because we didn´t know since they us would treat. But ultimately they was phenomenal and they are very participative , we realized that the people don´t know very much on the climate change.
I believe that the best way of having the entertaining people is to do that it takes part by means of questions that say to themselves along the presentation which they have to answer.

CLIMATE CHANGE- Choose your future

The climate change is produced by an increase of the greenhouse effect.
This increase is due to the increase of CO2 emissions.
But we can stop it.
We must reduce de CO2 emissions and it is very easy to do.
Some examples are:
-To buy domestic appliances of class AAA.
-To isolate the houses.
-To plant trees.
-To regulate the heatings to 21 °

But the most important thing is that we have to arouse because it is a problem that affects us and we have to be conscious of the consequences.

Sustainability: it's not a dream, it can be reality

Sustainable development provides the actual generation's needs and preserves the environment so that these needs can be met not only in the present, but also for future generations. Also:
· Renewable resources won't be exploited at a rate greater than the replacement and not only to the extent they are replaced by alternative sources.
· Won't be thrown away the environment more wastes than it can absorb.

Major challenges for sustainable development:

The inability of the human to live in harmony with the planet, the great interaction between man and natural system, are the great environmental problems nowadays. To this day, no species, except the human, has been able to modify so substantially, in such a short time, the characteristics of the planet.

Thus, the world's problems that arise are the following:

- Overpopulation and inequalities.
- The increase of greenhouse effect.
- Destruction of the ozone layer.
- Humanization of the landscape.
- Preservation of biodiversity.
- Erosion, desertification and forest destruction.

Would you like to live in a Green Building? (arquitectura bioclimática)

Green building consists in the design of buildings according to the climatic conditions taking advantage of the avaiable natural resources, such as wind, sunlight, vegetation and rain. The objective of green building is to decrease environmental impacts by decreasing the energy consumption.

This type of building is more expensive than normal buildings, but a green building is sustainable and it saves a lot of energy.

Nowadays there isn't so many green buildings because in developed countries there isn't so much respect to the environment.

To get warmer temperatures in winter and cooler temperatures in summer a house must have south-facing windows (if it's on the northern hemisphere) or south-facing windows (in the southern hemisphere). To insulate well a building it must have thick walls.

Presentación sobre el cambio climático. MALENA BURGHARDT

Climate change

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My Experience: a presentation by Patricia & Lia

Climate Change on Prezi

My experience showing the presentation.
At first, I was very very scared and nervous, because I had never done something like that, and showing the presentation in English was a challenge for me. But, when my partner Lia and me started with the presentation, I could see that it wasn't so bad as I thought, so I felt more relaxed.

Let´s save energy in 20 steps!

Some things we can do to save energy is:
1. - Buy appliances AAA
2. - Put energy saving light bulbs
3. - Unplug electronic devices when don't use.
4. - Use public transport.
5. - Buy food in places near to home, since it reduced car use.
6. - Install solar panels.
7. -Don't put the temperature of the heating very high.
8. - Eat vegetables that need less carbon dioxide.
9. - Turn off lights when not using.
10. - Use rechargeable batteries.
11. - Reuse plastic bags to buy or keep things.
12. - Recycle rubbish.
13. - Save water (take off the tap when brushing your teeth, etc.)
14. - Walk or ride a bike to go to sites.
15. - Wash with cold water.
16. - Turn off computers.
17. - Seal windows.
18. - Use electric cars.
19. - Windows with double glazing.
20.- Use recycled paper.


The presentation about climate change:
The presentation I made with Celia and I didn't like because I don't speak english well and the presentation it was in english. That 's why it was uncomfortable.
But I think that the topic of the climate change is interesting because this affect our lifes and we should do something.

Presentación sobre el cambio climático. Miguel Hernández y Sandra Holthausen.

Climate Change on Prezi

How Concerned Are You About Climate Change?

Climate change or global warming is the modification in Earth's climate. This warming is caused by the greenhouse effect. The greenhouse effect is a process that is good for the planet, but their increase may have negative consequences. 
The greenhouse effect is caused by ultraviolet rays that enter in the planet but don't leave.Some of them should stay because the planet is heat. But others remain on Earth for pollution that there are in the environment.

This process has increased in recent years because the population is consuming resources too quickly and doesn't help with the care of Earth. Also influence deforestation, as today has greatly increased.

The greenhouse effect is causing many natural disasters such as fires, earthquakes, tsunamis, etc.

The destruction of biodiversity is a consequence of the enhanced greenhouse effect, every day there are more species that are endangered. The melting of the poles is also a consequence.

If nothing is done in few years the natural resources like oil will end and the planet will be in danger. We must act and become aware of the need to save the planet. Maybe we don't affect the consequences, but they affect our future generations.

                                      

My Experience: a presentation by Laura C. and Celia

CLIMATE CHANGE on Prezi

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Experiencia sobre nuestra presentación realizada a 1ºA bil. del IES El Palo.

Mi experiencia con la presentación que presentamos fue bastante buena, al principio creía que al ser un curso tan pequeño y con tan mala fama nos iba a costar mucho plantear nuestro tema y nuestros argumentos. Sinceramente fue muy bien y muy fluido, en ningún momento se llegó al aburrimiento ni a romperse la comunicación y además hicimos que el grupo colaborase bastante y se concienciara sobre las grandes consecuencias del cambio climático provocado por nosotros mismos.

My Experience: a presentation by Pablo and Miguel Ángel

Climate Change on Prezi

Presentación sobre el cambio climático en inglés. By Jeny and Sebas.

Climate Change IES El Palo 2012 on Prezi