It doesn’t have an exact date of when it started to be a problem, but since the inhabitants of the world started to make more and more carbon dioxide (CO2) this problem started, but it started in a different level. We can say that global warming started since the human being discovered fire, because fire produces carbon dioxide (CO2), but this didn’t increase the amount of carbon dioxide (CO2) in the ozone layer, it was that technology of our world started to increase, but this is not bad at all because in a certain time the technology will help to decrease the carbon dioxide (CO2) without using carbon dioxide (CO2).

But, what is the influence of technology on global warming? For some reason the technology that the human being invents is regularly bad for the nature. The technology normally needs carbon dioxide (CO2) to work, but once the carbon dioxide (CO2) has already done its work rejects it, and it goes to the ozone layer.

It started all over the world, but the country that started to be affected first was Chile, because one part of the ozone layer broke and the people of Chile started to be affected. The babies began to be born with deformities in the body.
All the world is affected in this problem, but the countries that are more polluted are:

• United States of America
• China
• Canada
• Mexico
• England
• Germany
• Italy
• Russia
• Saudi Arabia
• India
• North Korea
• South Korea
• Japan
• Chile
• Egypt
• Australia

These are 16 of 20 countries that are the most affected by global warming.
The carbon dioxide (CO2) is a chemical compound composed of two oxygen atoms bonded to a single carbon atom. It is a gas at standard temperature and pressure and exists in the Earth’s atmosphere.

Carbon dioxide is used by plants during the plant’s process of nutrition called “photosynthesis”, which is consumed in respiration or used as a material to produce organic compounds needed for plants to grow or their development. It is a component of the carbon cycle. Carbon dioxide is generated as a product of the combustion of fossil fuels or the burning of vegetables, among other chemical processes. Small amounts of carbon dioxide (CO2) are emitted from volcanoes.

The climate’s change is linked to an energy model dependent on oil, coal and gas.The burning of these fossil fuels releases large amounts of carbon dioxide into the atmosphere. The atmospheric concentrations of carbon dioxide have increased by 35% above pre-industrial levels. In fact, current concentrations of CO2 have not been overcome in the past 420,000 years and probably not in the last 20 million years.

Carbon dioxide is one of many gases that cause the greenhouse effect, that helps the Earth has a habitable temperature. On the other hand, an excess of carbon dioxide causes the greenhouse effect, reducing the emission of heat into space and causing further warming of the planet.
Carbon dioxide is used by the food industry, the oil industry, and the chemical industry. It is used:

• In many consumer products that require special gases, because it is cheap and nonflammable, and it has a phase transition from gas to liquid.
• It is used in carbonated soft drinks and soda water.
• In some candies
• In pneumatic systems
• Fire extinguishers
• Pharmaceutical and chemical processing
• In agricultural and biological applications
• As oil recovery.

The effects of global warming are of concern both for the environment and human life.
The most important effects are:

a)Extreme weather
b)Increased evaporation
c)Local climate change
d)Glacier retreat and disappearance
e)Sea level rise
f)Temperature rise
g)Acidification
h)Shutdown of thermohaline circulation
i)Oxygen depletion
So we have decided to make global warming as an important topic in our committee and have the most solutions as possible.

Questions for the delegates:

1. What are the actual effects of global warming that can be seen in your country and in the world and what caused each of these effects?
2. What has your country done to stop the overproduction of CO2?
3. Is your country at grave risk from this problem?
4. What has your country done and what is it planning to do to improve?
5. What solutions does your country give for the rest of the world?

Helpful links:

• www.unep.org
• www.un.org/en/
• http://environment.nationalgeographic.com