How do we know that climate change exists and what causes it? climate change as many know it, has been a big issue around the world. There are anthropogenic and natural causes which are responsible for this cause but individually they contribute a small amount but are a huge factor as a whole. What is global warming? it is the increase in the mean temperature of the earth’s atmosphere. It is said that the temperature has been rising by 0.5° every year and the highest temperature recorded was 47.6° in faya, chad in 22nd june 2010. This means there will be more evaporation taking place and this frees several chemicals which help global warming take place.

Graph showing the number of storms per year during the years the number of storms increases every year. Air temperature near surface troposphere ten indicators of a global warming world how do we know global warming exists? well, the glaciers and icebergs have been melting due to the high temperatures. Weather balloon measurements were taken from the years 1975 to 2005 and they say that the temperature has been rising by 0.23°c. Eleven of the twelve years 1995 to 2006 were ranked among the 12 warmest years in record of the global surface temperature the frequency of hurricanes also has increased due to this.

Sea surface temperatures and ocean temperatures are showing long term warming trends. This can be proved by drilling a hole in the ice and analysing the air bubbles because the deeper down the layer of ice is, the older it is. Also isotopes of o2 can give evidence of the temperature and since this varies every time, it is possible to find the time that particular bubble was present. The global average sea level rose at a mean rate of 1.8mm every year during the years 1961 to 2003 but however the rate was faster during the years 1993 to 2003 where it was approximately 3.1mm every year. This was due to the ice melting from the arctic and it is said that the average arctic temperatures have increased at almost twice the global mean rate in the past century. Graph showing the global surface temperature from 1500 to 20 graph showing the sea surface temperature from about 1975 to 2005 graph showing the world temperature from 1880 to 20 the main reason as many people believe behind climate change this is the greenhouse effect but however we, humans are not the ones completely responsible for this. What is the greenhouse effect? it is the natural process that the gasses in the atmosphere trap heat from the sun.

Doctoral Dissertation Assistance Kissinger

More specifically this prevents the escape of heat which would have been lost in the atmosphere. These gasses act rather like as if they were in a greenhouse and this is how the name originated from. Co2 concentrations and methane concentrations rate of co2 concentration increases rapidly rapid increase in concentration this part rapid increasing rate is common in all graphs and follows the trend of the radiative forcing. Red line co2 concentrations another major cause for climate change is the use of fossil fuels coal, oil and natural gas. Last winter, the northern hemisphere saw its greatest snow cover since 1966, which in the northern us states and canada was dubbed the winter from hell. Below is an essay on does global warming exist? from anti essays, your source for research papers, essays, and term paper examples.

Many scientific debates concerning global warming have been the burning issue across the world for several years. Actually, global warming is the gradual rise in the temperature experienced on earth. In other words, it is the increase in temperature on the earth’s surface, which is as a result of the numerous human activities. The methane gas released from the wetlands and the arctic tundra is the main natural cause of global warming. The heat then suspends in the atmosphere making the earth’s surface abnormally hot stern, 2002. The fact that the earth undergoes a chain of changes in climate, and the changes normally last long about forty thousand years is also termed as a cause for the global warming nrdc, n.d.

On the other hand, anthropogenic causes are the worst and cause the greater percentage of damage. The pollution results from a number of activities such as mining and the burning of fossil fuels. Actually, when these fossil fuels are burned, they release another greenhouse gas known as carbon dioxide co2 stern, 2002. For example, when coal and fuels are extracted from the underground, a process of digging up the ground takes place. Global warming is defined as an increase in the average temperature of the earth's atmosphere. This trend began in the middle of the 20th century and is one of the major environmental concerns of scientists and governmental officials worldwide. The changes in temperature result mostly from the effect of increased concentrations of greenhouse gasses in the atmosphere.

These gasses, which include carbon dioxide and methane, are mostly produced through human activity. People disagree on how to address the problem and some simply do not believe that global warming is even occurring at all. Global warming is an internationally recognized problem and many nations are on board with addressing the issue in the most effective manner possible. The kyoto agreement was called for a reduction in greenhouse gas emissions and, as of november 2009, was signed by 187 nations. Since 1750, there has been an overall increase of 90 250 percent in the release of carbon dioxide. If global warming continues at the rate it is right now, scientists warn against a large number of ill effects. Decreases in the amounts of ice and snow in some regions have already endangered many species and continue to do so.

Further global warming will also result in a melting of the polar ice caps, which is already occurring. This will lead not only to loss of habitats, but also to a rise in the level of the ocean. A rise in ocean levels could bury some of the coastal cities and islands under miles of water and greatly reduce the amount of land available for human life. There is also significant evidence to support changes in forestry over the last 100 years.

Dissertation Services Uk Guidance

As global warming has sped up, there have been a number of responses, both innate and planned. Mitigation is common and calls for a reduction of emissions and less reliance on fossil fuels. Coal burning power plants are now replaced with hydraulic power plants and electrical cars are replacing some gasoline efficient cars.

These environmental radicals want to see a complete overhaul of the system and severe reduction of any reliance on factories or machines that produce greenhouse gasses. This would involve engineering the climate of the earth artificially through removing carbon dioxide from the atmosphere or blocking incoming sunlight. These techniques would be particularly costly to develop, so they are strongly opposed by supporters of mediation and simple policy change. When it comes down to it, most politicians and scientists agree that the power to stop global warming lies mostly with the people. Whether a supporter of simple mediation and reduction of use or a believer in dramatic overhauls such as geo engineering, most scientists agree that the more people who are on board, the better. One survey found that over one third of people were completely unaware of global warming and its effects. A great first step toward changing the environment would be to educate these people.