Ozone depletion causes global warming Essay Example | Topics and Well Written Essays - 2500 words

Ozone depletion causes global warming - Essay Example In line with that, it would help in the discussion if the ozone layer and global warming are both defined. Ozone is made up of three atoms of oxygen which is poisonous when people inhale it especially at high concentration. It is unlike the air human beings need which is made up of two atoms of oxygen. People may get sick especially the disease called asthma when ozone is formed near the surface of the earth. It is very useful once it is formed in the atmosphere because it serves as a blanket of protection from solar radiation. Ozone layer is considered as a sub-layer in the atmosphere which has an altitude of 10 to 35 kilometers. The mechanism on how the ozone is formed is by the exposure of oxygen in the atmosphere to the ultraviolet rays from the sun and as ozone is formed, the harmful UV radiation is absorbed. High concentration of ozone in the atmosphere is very much needed by the earth because the higher the concentration of zone, the less UV radiation can reach the surface of the earth. Once ozone is not able to do its job, people are then exposed to higher concentration of UV radiation that may cause sunburn, skin cancers and eye cataracts as more UV rays can penetrate the atmosphere (Shanklin 84). It is noteworthy to remember that ozone layer is a very important component of the atmosphere and the big protector of people and other organisms against the direct exposure to the harmful radiation from the sun. A more detailed explanation regarding the ozone layer would be better in explaining the importance of its existence. Further discussion is about the exact location of ozone layer and the problems it faces as it is being depleted. Ozone layer is a sub-layer of the stratosphere and located at about 15 kilometres above sea level. Even though the ozone present in the atmosphere is not as abundant as oxygen and nitrogen, it is still very important due to its ability to absorb the radiation. A study was made by Crutzen in 1970 about the nitrogen oxides pro duced from the decay of nitrous oxide through the soil microbial activities. The study showed how nitrogen oxides react quickly with ozone that allowed the concentration reduction of available ozone. The study opened the grounds on  further research regarding "global biogeo-chemical cycles" and the nitrogen oxides coming from the airplanes as they travel on the stratosphere (Lipkin 262). Harmful radiation increases as ozone layer is being reduced. The depletion may have both advantages and disadvantages to living things especially to human beings. In the past 60 years, awareness became more prevalent towards the consequences of exposure to radiation. Recent studies proved that the eye and the skin are the two of the body organs that are most prawn to damages and diseases due to UV radiation. Cataract is the usual effect of UV radiation to the eyes while skin cancer is the common result on skin (Norval et. al. 199). The other concept that must be talked about is global warming. The increase in the average surface temperature of the earth is said to be global warming. It happens because of the greenhouse effect that increases the concentration of carbon dioxide and other gases like water vapor, methane, chlorofluorocarbons and nitrous oxide in the atmosphere that cover the surface of the earth and prevents the UV radiation to escape to the outer space. The radiation increases the heat on the surface of the earth that leads to the global increase in temperature. Human activities contribute to the

Academic and Career Goals Essay Example | Topics and Well Written Essays - 500 words

Academic and Career Goals - Essay Example I have a positive attitude towards my academic achievements and this is what I will use to help me attain my goal within the specified time frame. I will however need to adjust my schedule and dedicate more time to academic than before but I have hopes that my grad team will help me on that. My career goal is based on my academic goal and it is to become a successful RN with my own private practice to help people with terminal illnesses enjoy and be comfortable in their last years of life. The motivation to do this is extrinsic and comes from my family members some of whom have terminal illnesses but cannot get the comfort and joy needed to overcome the illnesses and enjoy their last years due to lack of proper private practices set out particularly for such a tasks. Seeing them receive only professional help where there is lack of love and social support is what drives me to want to achieve my set career goal and make a difference in the community of the people with terminal illnesses. The attitude I have which I will have acquired from experience as a LPN and academic achievement will help me sail through this tasking career goal smoothly. I believe I have no adjustments to make since I will have all I require to achieve my career goal once I complete my education. The above grad team is my key to achieving my academic goal and finally to having a successful career goal and hence close contact and mutual relationship is very necessary. My admissions representative will come in handy when the time comes to make transition to RN from LPN without having to wait for several months for the application to go through since I am on a time schedule to attain the goal. This will also not be successful if my academic counselor does not constantly advise me and keep me in check on my academic work, upping my grades and putting more effort not only in class but also during my