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Global warming is the increase of temperature on the Earth’s surface
Global Warming
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Global warming
Global warming is the increase of temperature on the Earth’s surface. It occurs when greenhouse gases such as carbon dioxide, nitrous oxide and methane, entrap heat and light from the sun in the earth’s atmosphere, which raises the temperature. The greenhouse effect occurs when heat from the sun accumulates in atmosphere but it cannot get out. Global warming is one of the most serious challenges facing the world today. It has several effects that include destruction of forests and submerging of low land islands. In order to safeguard the health and economic welfare of present and future generations, emissions of heat-trapping gases should be reduced appreciably. This can be achieved by using technology and realistic solutions present globally (Pringle, 2003).
There are many causes of global warming. Most of them are related to human activities. Pollution, resulting from the production of electrical power, is one of the main causes of global warming. In many cases, fossils fuels are burnt up to generate electricity. Fossil fuels originate from the tissues of dead plants and animals. Examples of fossil fuels include oil and petroleum. Most of the air pollutants come from the burning of fossil fuels. Some of the pollutants constitute the greenhouse gases. People make use of these sources of energy more often than other energy sources that discharge less pollution. For instance, petroleum, one of the sources of energy, is used much more in transportation sectors, in industries and in making other products. Even though this source of energy releases a lot of pollution, about thirty eight percent of petroleum is used in the US for energy purposes (Maslin, 2007). This increases the rate of releasing greenhouse gases into the atmosphere thus contributing to global warming.
Global warming has effects on many parts of the earth. It leads to sea rise, which results in water covering most of the low land islands. This is a major trouble for many plants, animals and individuals on the islands. The water covers up the plants causing them to die. Consequently, the animals lose a food resource together with their habitation. In addition, when plants and animals die, people lose plants and animal sources of food. Moreover, people may lose their homes. Global warming also causes sea water to become warm and this kills algae in the ocean. Algae are a source food to most of the sea occupants such as fish (Pringle, 2003). Thus, destroying algae leads to lack of food to most sea animals and eventually to people.
Global warming is wiping out most of the large forests on earth. The pollution that contributes to global warming is associated with acid rain. Acid rain steadily destroys everything it comes into contact with. Additionally, global warming is the source of many fires that destroy whole forests. This takes place because global warming makes the earth extremely hot. Some of the plants become dry to an extent of catching on fire. Furthermore, global warming affects human beings by causing diseases. This is as a result of drastic climatic changes that lead to emergence of new diseases.
Global warming can be reduced by planting trees and recycling of used products. Recycling reduces the waste products that are burnt thus reducing the amount the greenhouse gases being released into the atmosphere. Global warming can also be curbed by people changing their lifestyles. For instance, instead of using personal cars to travel, people should walk, aboard buses or ride bicycles. The government has a duty to play in passing Clean Air Act in order to reduce air pollution. With these regulations, companies are bound to change their products to those that do not release much pollution to the atmosphere. Therefore, global warming, being a phenomenon brought about by human activities, can be reduced greatly by changing the methods of energy production as well as changing lifestyles.
References
Maslin, M. (2007). Global Warming: Causes, Effects, and the Future. Minneapolis, MN: Voyageur Publishers.
Pringle, L. (2003). Global warming: the threat of Earth’s changing climate. San Diego, CA: SeaStar Books.
GLOBAL WARMING II
GLOBAL WARMING
Global warming has become a very popular topic in the world today, establishing itself as the world’s number one concern. Global Warming is a phenomenon in which the earth’s temperature drastically rises. It happens when greenhouse gases (carbon dioxide, water vapor, nitrous oxide, and methane) trap heat and light from the sun in the earth’s atmosphere, which increases the temperature because there is no way of these escaping out of the atmosphere, thus causing discomfort and hurt to many people, animals, and plants.
Global warming can be simply understood by drawing a comparison to the Greenhouse effect, which is when the temperature rises because the sun’s heat and light is trapped in the earth’s atmosphere. This is like when heat is trapped in a car. On a very hot day, the car gets hotter when it is out in the sunny parking lot. This is because the heat and light from the sun can get inside the car, by going through the windows, but it can’t get back out. This is what the greenhouse effect does to the earth. The heat and light can get through the atmosphere, but it can’t get out. As a result, the temperature rises.
The most common cause of global warming is the burning of fossil fuels which are mainly petroleum and coal, all which produce carbon dioxide as one of the by-products. Deforestation is another cause of this phenomenon. This is because it reduces the number of trees which ought to absorb the excess carbon dioxide in the atmosphere, which is the main component of greenhouse gases that traps and retains the sun’s radiant heat. Unattended to garbage especially that which is left to heap into landfills when burned releases greenhouse gases .
Evidence for warming of the climate system includes observed increases in global average air and ocean temperatures, widespread melting of snow and ice at both the North and South poles of the globe which subsequently leads to rising global average sea level. Rising sea levels is the biggest threat that has been posed by this occurrence in that low-level islands face as a result submergence. Destruction of plants and human settlement in these areas are just examples of its effects. The most common measure of global warming though is the trend in globally averaged temperature near the earth’s surface.
All these can be reduced or better still controlled through enactment and enforcing of international environmental treaties and laws all of which seek to protect the plight of the World as a whole from the curse of global warming. Besides environmentally-friendly laws, use of alternative sources of energy like biogas and solar energy may be exploited whilst forestation and reforestation are also other activities aimed at minimizing this threat.
In conclusion, it is paramount to recognize that global warming is a reality which threatens the very existence of flora and fauna in diverse ways. Humans and their habitats alike are part of the statistics and this calls for a swift action plan to be put in place because sooner than later, The Maldives being the hardest hit island on the verge of submergence. Minimizing these effects will however take longer time as the whole world still relies on the causes of global warming. Caution and Care are the keys to a sustainable healthy world for you and me.
References:
HYPERLINK “http://en.wikipedia.org/wiki/Global_warming” http://en.wikipedia.org/wiki/Global_warming
HYPERLINK “http://www.weatherquestions.com/What_is_global_warming.htm” http://www.weatherquestions.com/What_is_global_warming.htm
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Global Warming Fact or Fiction
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Manmade and natural causes of global warming
Global warming as a fact
Global warming as a myth
Global Warming: Fact or Fiction
Although scientists and environmentalists across the globe fear that the adverse implications of global warming threaten the very existence of humanity, the global warming skeptics have stayed put and insist that this concept is just a myth. The bone of contention pertains to the fact that the earth’s temperatures are increasing progressively and this is attributed to human activities. The global warming skeptics have generated various counter arguments that argue against this fact. They believe that the contentions put forth by the scientists and environments are not reliable as they are computer generated. Before we underscore the particularistic aspects pertaining to each side of the debate, it is imperative to understand the natural and anthropogenic factors that contribute to this phenomenon.
According to Wegman (2007), global warming denotes changes in the mean temperatures of the earth. This has been implicated for triggering changes in climatic conditions that compromise the quality of life on earth. The natural causes for these changes have been cited by McBrewster, Miller and Vandome (2009) to encompass solar activity, orbital forcing and volcanic emissions. From a theoretical point of view, it is argued that the sun has increasingly been gaining strength in the last sixty years. This has culminated to increase in the mean temperatures and hence global warming. Orbital tilting on the other hand is a natural cause that is defined by implications of the tilting of the axis of the earth to its climatic conditions. Finally, volcanic emissions contain a wide variety and significant volumes of green house gases that increase the temperature of the earth by a significant twenty five percent (Craven, 2009).
According to Craven (2009),manmade causes of climate change include industrialization that releases green house gases to the atmosphere; deforestation that inhibits carbon sequestration and burning fossil fuels that releases green house gases in the atmosphere. Scientists contend that human contribution to this phenomenon currently stands at eighty percent.
As indicated earlier, the current debate in this regard comprises of two opposing factions that have substantial information to back up their positions. While scientists and environmentalists understand the relative hazards that are associated with this phenomenon, the skeptics argue that the contribution of man to this is negligible and the phenomenon in itself is insignificant. Facts about climate change are defined by the increase in the frequency and magnitude of natural catastrophes, increase in temperatures, extinction of species, and the effects of this to humans.
With respect to natural catastrophes, Haghoe and Farley (2009) cite that the increase in seal level and the resultant flooding and disappearance of the coastal regions is a clear indication that global warming is a fact. In the recent past, incidences of drought, floods and other natural calamities such as hurricanes have been more frequent and extreme. Of great reference in this respect is the fact that summers have become increasingly warm and winters unusually cold. Further, scientific evidence ascertains that there are inherent changes in the global temperatures of the earth. In this respect, McBrewester et al (2009) asserts that the last thirteen years constitute the warmest years in history. Variations in these temperatures have led to increased incidences of not only droughts and floods but also cold waves and heat waves. This has had significant changes to disease patterns due to migration of disease carrying insects.
The increase in extinction of certain biological species can also be attributed to increase in global temperatures. In his review, Craven (2009) indicates that the extinct species range from birds and amphibians to mammals, reptiles and insects. A classic example of a species that got extinct due to changes in temperatures is the Monteverde toad that was endemic to Costa Rica rain forests. Currently, the continued survival of the polar bear is also being compromised by the warming of the earth. Their habitats are being destroyed due to the melting of icecaps. In order to secure their survival, Bowen (2008) affirms that they are increasingly migrating towards the North Pole.
Perhaps the most vital implications that accredit the fact that global warming is reality are the effects on human beings. It cannot be disputed that of all the species, humans are the most depended on nature. They exploit it for various reasons and therefore any modifications are likely to have far reaching implications on their existence (Wegman, 2007). The changes in climate have led to crop failure in different parts of the world. Coupled with loss of important vegetation cover and extinction of species, this has greatly affected the ability of man to survive. Most importantly, the loss of coastal habitats due to submerging of this indicates that the implications of global warming are real and grave.
Despite this realization, various counter arguments have been put forth and essentially, they maintain that global warming is just a myth. Despite having cited that the phenomenon is derived from computer generated models, Hoggan (2009) cites that the scientists in this regard have a vested interest and exaggerate the relative implications for them to be able to get funds from different activist companies. Basically, he maintains that this phenomenon is very minor and therefore it should not consume a significant percentage of limited resources. Further, it is indicated that the fact that scientists have made significant errors in the past implies that this is also an error that is related to their computer simulations. According to Ollhoff (2010), opponents of this indicate that the relative effects are a characteristic of different phases of climate changes that are cyclic in nature. The credibility of this phenomenon has also been undermined by the fact that there are no long term and historic records of weather patterns upon which the conception was derived.
At this point, it is certain that the climate change debate has been compounded by various complexities. While environmentalists and scientists provide factual information about this phenomenon, skeptics still believe that is just fiction. A critical review of the impacts of this need to be employed in making decisions related to the same. Timely interventions should seek to address the causes of climate change in order to reduce its grave impacts.
References
Craven, G. (2009). What’s the Worst that could Happen: A Rational Response to the Climate Change Debate. USA: Perigee Trade.
Bowen, M. (2008). Censoring Science: Dr. James Hansen and the Truth of Global Warming. USA: Plume.
Haghoe, K. & Farley, A. (2009). A Climate for Change. Global warming Facts for Faith Based Decisions. USA: Faithwords, 2009.
Hoggan, J. (2009). Climate Cover-up: The Crusade to Deny Global Warming. USA: Gregstone Books.
McBrewster, J., Miller, F. & Vandome, F. (2009). Global warming Controversy. USA: Alphascript Publishing.
Ollhoff, J. (2010). Climate Change: Myths and Controversies. USA: ABDO & Daughters.
Wegman, E. (2007). Controversy In Global Warming: A Case Study in Statistics. USA: Wiley Interscience.