On Feb. 2, 2007, the United Nations scientific panel studying climate change declared that the evidence of a warming trend is "unequivocal," and that human activity has "very likely" been the driving force in that change over the last 50 years. The last report by the group, the Intergovernmental Panel on Climate Change, in 2001, had found that humanity had "likely" played a role." (Science, 5 December 2008).
Ozone and Earth's Homeostasis
The homeostasis on the earth is maintained by the presence of ozone, ozone makes a layer in the stratosphere which is roughly about 10-15 kilometers from the earth's surface. Ozone is formed when O2 and Oxygen atom O. collide with each other. When this reaction takes place the molecule O3 contains excessive energy, after the formation of the molecule becomes unstable, the excessive energy is discarded by colliding with another atom and the energy is transferred in the form of heat. "In the results of the decomposition of ozone into O2 and O. In the ozone layer, solar radiation is absorbed. This process of the chemical bond breaking causing the absorption of a photon by a molecule is called photo dissociation." (Ozone, 5 December 2008). 99% of radiation is absorbed by the ozone layer and this is exactly why there have been serious concerns about the depletion of the ozone layer.
Maintaining the Ozone Layer
The most significant reason of the depletion is the use of ozone destroying chemicals. Ones if all the countries stop using these chemicals it is believed that the ozone layer will recover from the bad condition that it is in today. The situation is so bad that there is even a hole over the Antarctic Ocean and in spite of this if all the countries tend to ignore this then very soon there would be no life on Earth. Producing industrial chemicals has also been a serious issue which causes the thinning of the ozone layer. Many countries have joined hands and reduced producing chemicals which deplete the ozone layer. Every country must be aware of this serious issue...
Every individual must make it a point to use products which have the sign of "Ozone friendly" on them, this can bring about a significant change and the same can protect the ozone layer from depleting further. When refrigerators or Air conditioners are repaired, it must be made a point to use the same CFCs instead of using new CFCs which would deplete the layer further. The air conditioners in automobiles must be checked every now and then to deal with the leakage which affects the ozone layer. The Halon fire extinguishers must be replaced with carbon dioxide fire extinguishers. All the educational institutes must spread awareness to counter this problem, unless more and more people get to know about this, the problem can never be solved. It can be solved by the cooperation of the people all across the globe.
There is a direct link between increased exposure to UV radiation and elevated risk of contracting certain types of skin cancers. Risk factors include skin type, sunburn during childhood, and exposure to intense sunlight. Recent changes in lifestyle, with more people going on holiday and deliberately increasing their exposure to strong sunlight, are partly responsible for an increase in malignant skin cancers. In order to minimize the risk of contracting skin cancer, cover exposed skin with clothing or with a suitable sunscreen or sun cream, wear a hat, and wear UV-certified sunglasses to protect the eyes." (Protection of the Ozone Layer, 5 December 2008). It is high time that all the individuals react, else life on Earth is ought to become a big question mark.
Global Warming: Early Warning Signs. In Climate Hot Map. Retrieved on 1 December 2008 at http://www.climatehotmap.org/
Introduction to Ozone. In Introduction to Climate. Retrieved on 5 December 2008 at http://www.ucar.edu/learn/1_5_1.htm
Ozone Depletion. In Think Quest. Retrieved on 5 December 2008 at http://library.thinkquest.org/26026/Environmental_Problems/ozone_depletion.html
Ozone. In Study World. Retrieved on 5 December 2008 at http://www.studyworld.com/newsite/ReportEssay/Science/Earth%5COzone.htm
Protection of the Ozone Layer. In Environment. Retrieved on 5 December 2008 at http://ec.europa.eu/environment/ozone/ozone_layer.htm
The Green House Effect FAQ. In Earth Science. Retrieved on 5 December 2008 at http://www.moorlandschool.co.uk/earth/greenhou.htm#q13
His government wanted HCFCs to replace CFCs. HCFCs are far less damaging to the ozone layer. They are used in refrigeration. He proposed that the deadlines for the cessation of the use of CFCs be advanced by a decade. The global agreement was to phase out CFCs among industrialized countries by 2030 and among developing countries by 2040. It was also later discovered that HCFCs warm up the earth
Ozone and Global Warming Globalism was one of the predominant changes made in the late 20th century. It combines economics, politics, and cultural movements that through the increased use of technology move the world closer together. If, in the modern world, actions are tied together, globalism should work because it delineates cause and effect in every area of the world. For instance, globalism has increased manufacturing and trade. Because of this,
Due to the Montreal Protocol signed in 1987 in which 160 of the world's nations joined together in banning CFCs and in an initiative to try to off-set any further effects due to emissions of gases that deplete the Ozone there are many recent reports that the hole in the Ozone layer is becoming smaller. The "impressive global response to ozone layer destruction," were sung praises of the Secretary-General but
2009). Though innovative, this use of the model appears to be highly reliable and appropriate given the context of the study. At the same time, very little direct observation is utilized for correlation to this data, and retroactive predictions are not presented to demonstrate the model's efficacy, raising some doubt. Discussion Though the system of ozone depletion and recovery was thought to be fairly well understood given the decades of research
Air Pollution, Climate Change, Ozone Depletion Should 3 papers. First 2 due 27 Mar 2012. Last 1 due 3 April 2012. This essay set parts: Prewriting Research, Rough Draft Workshop, Final Draft Presentation. Air pollution is presently one of the most divisive issues, considering that it continues to occur in spite of the fact that numerous environmental scientists have tried to raise public awareness concerning the concept. Smog clouds are
A found this article particularly shocking for the immense figures suggested by the number of babies born daily. Such statistics opened my eyes to the core of the problem. Not only are we destroying the planet through our overindulgent, selfish and unsustainable habits, but also by the sheer number of us doing the same thing. No wonder studies such as the one in the first article found very little positive