Global Warming and the Depletion of the Ozone (O3) Layer
The average surface temperature on Earth has increased approximately 1.0°F in the past century, and it is projected that it will again increase somewhere two and nine degrees by the year 2100. This is the expected effect of increased greenhouse gases, which contain the Sun's energy (heat) in the lower atmosphere (troposphere). Much of the increase in these gases can be considered a natural occurrence, however, at least some of it is human induced. The depletion of the ozone (O3) layer is negatively affecting our ecosystem, by way of global warming and climate change.
Some of the benefits of the O3 layer in the stratosphere (outer layer of the Earth's atmosphere) are: that it provides us with blue skies; it protects man and vegetation from the harmful ultraviolet (UV) rays of the sun, and traps the proper amount of heat within the Earth's atmosphere to sustain life. While O2 is colorless, O3 is blue in color; without enough of it, our skies might not be so blue. Not only can UV cause skin cancer in people. if enough of it reaches the troposphere, it can negatively affect plant growth (food), which is a great part of our ecosystem.
Damage to the ecosystem is caused primarily by the depletion of the O3 layer, which is about ten miles above the Earth's surface. This occurs largely as a result of the pollutants (unnatural greenhouse gases) that are, or were, spewed into the air by man. The burning of fossil fuels now causes most of this: in our cars, trucks, power plants, etc. Until the latter part of the 20th century, it was the atmospheric release of chlorofluorocarbons (CFC's). These were a result of manufactured chlorine compounds, such as aerosol propellants and...
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...ent from U.S. Environmental Protection Agency: Jun. 1996 The Management Institute for Environment and Business. 19 Apr. 2004
href="http://yosemite.epa.gov/ee/epa/eermfile.nsf/vwAN/EE-0214E-01.pdf/$File/EE-0214E-01.pdf">http://yosemite.epa.gov/ee/epa/eermfile.nsf/vwAN/EE-0214E-01.pdf/$File/EE-0214E-01.pdf</a>.
Thorpe, Beverley. Citizen's Guide to Clean Production. Lowell, MA: Clean Production Network, 1999.
United Nations Environment Program. Government Strategies and Policies for Cleaner Production. United Nations Environment Program, 2001.
University of Western Ontario. "Case study for the 4th year course in ecosystem health ozone depletion." (n.d.). Ecosystem Health. 18 Apr. 2004
href="http://www.med.uwo.ca/ecosystemhealth/education/casestudies/ozoneenviro.htm">http://www.med.uwo.ca/ecosystemhealth/education/casestudies/ozoneenviro.htm</a>
Tibbetts, John. "Environmental Health Perspectives." January 2006. Louisiana-A lesson in Nature Appreciation Vol. 114, Number 1. 4 December 2010 .
Cunningham, William P. Cunningham, Mary Ann and Saigo, Barbara. Environmental Science, A Global Concern. McGraw-Hill. New York, NY. 2005.
The Web. 26 May 2014. The "Environmental Indicators" Government of Canada, Environment Canada. N.p., n.d. Web. The Web.
This case focuses on corporate obstacles to pollution prevention. Pollution prevention can complex especially for large corporations. There are many different forms of pollution prevention including emissions control devices and incremental changes in existing technology. The author reviews the impact of emissions controlled devices, however the focus of the case study is on incremental changes in existing technology. Incremental changes include substituting one or two steps in a production process or relationship changes between production steps. One example of incremental changes that was provided by the author was eliminating chlorofluorocarbons and saving energy by replacing a refrigeration process with a heath exchanger that can exploit waste cooling from another part of the process. There are three critical decision-making stages for incremental changes; identifying a pollution prevention opportunity, finding a solution appropriate to that opportunity, and implementing that solution. The author discusses the three aspects of an organization (culture, ability to process information, and its politics) and how they impact the decision-making stages.
Nebel, Bernard J., and Richard T. Wright. Environmental Science. 6th ed. Upper Saddle River, NJ: Prentice Hall, 1998.
Global warming and global climate change is the study of future increases of temperature across the globe. Studying climate change refers to how the over- all climate will change such as the dry places getting dryer and the wet places getting wetter. Global climate is dependent on “the greenhouse effect a natural process that helps regulate temperature” (Easterling and Karl). In the past few centuries humans have had a monumental effect on increasing of greenhouse gases in the atmosphere. Climate change is result of the increase amount of the greenhouse gasses in the atmosphere such as methane, carbon dioxide, water vapor, nitrous oxide, and ozone. “Global temperature has rose approximately 1.4 degrees Fahrenheit over
Earth’s climate is determined by the physics and chemistry of its atmosphere. Earth’s atmosphere consists of four layers; troposphere which is closest to earth, stratosphere, mesosphere, and thermosphere. Hardy says, “During the past 100 years we humans, as a result of burning coal, oil, and gas and clearing forests, have greatly changed the chemical composition of the thin atmospheric layer.” There is more carbon dioxide in the atmosphere due to burning fossil fuels. The atmosphere is made up of many gases such as nitrogen, oxygen, and argon. It also consists of trace gases such as carbon dioxide, methane, carbon monoxide, nitrogen oxides, chlorofluorocarbons and, ozone. The trace gases have the greatest effect on our climate (Hardy 5). Up to a certain level, these gases help to keep the planet warm by absorbing certain infrared wavelengths, so that there can be life on the planet. Thus, they trap heat in the troposphere and stop it from escaping to space (Hardy 7). Therefore, the greater amount of greenhouse gases, the more heat trapped in the atmosphere. Earth’s temperature is increasing due to increased levels of greenhouse gases such as carbon dioxide released into the air from burning fossil fuels. The Intergovernmental Panel on Climate Change (IPCC) 2001 report projects “global average surface temperature increases ranging from 1.4 to 5.8 degrees
Raven, Peter H., Linda R. Berg, and David M. Hassenzahl. "Wiley: Environment, 6th Edition." Wiley: Home. Web. 05 Feb. 2012. .
According to World WildLife Fund, many ecosystems around the world are being destroyed, eliminating many plant and animal species that inhabit them (“Pollution”). 2. And acid rain, which is created when water in the atmosphere mixes with chemicals, ravage through rain forests and can even kill fish. 3.
The ozone layer diminishes more each year. As the area of polar ozone depletion (commonly called the ozone hole) gets larger, additional ultraviolet rays are allowed to pass through. These rays cause cancer, cataracts, and lowered immunity to diseases.1 What causes the depletion of the ozone layer?
The commonly debated “greenhouse effect” refers to “the global-average temperature increase that has been observed over the last one hundred years or more” (Spencer). President Barack Obama addressed the issue as an effort to highlight its severity, "We have to all shoulder the responsibility for keeping the planet habitable, or we’re going to suffer the consequences – together” (Leader). The earth’s increasing atmospheric and oceanic temperatures result in climate changes due to cumulative amounts of carbon dioxide (CO2) in the atmosphere.
As we approach the future we are faced with many global problems. Most of these problems arise because we have caused them ourselves. We need to face these problems and find a solution. Global warming, although most often overlooked in importance, is a crucial problem of the future directly related to human activities. Global warming is caused by gases humans release into the atmosphere called anthropogenic gases and by deforestation. Anthropogenic gases include carbon dioxide, methane, chlorofluorocarbons (CFCs), hydrofl...
Global Warming One of the most substantial problems in the world today is global warming. This gradual warming of the earth is in occurrence at an extremely slow rate but it is happening. Many scientists believe that as human’s work and release greenhouse gases into the earth’s atmosphere, it can become dangerous for the long lasting life of humans and our environment. “Unless we take immediate action, the impacts of global warming will continue to intensify, grow ever more costly and damaging, and increasingly affect the entire planet - including you, your community, and your family” (“Global Warming Impacts”).
As matter of fact, the increasing of greenhouse gases (GHGs) including water vapor (H2O), carbon dioxide (C...
The degradation of ecosystems and loss of biodiversity is increasing at an alarming rate every year. Humans are certainly not the only reason for this, but they are the main contributors. The well-being of ecosystems affects our everyday lives - consumption and consumerism depend on natural resources. Everything humans use is derived from them, in seemingly indirect and direct ways. Yet despite the fact that humans are destroying the environment, many continue to and neglect to take important measures to protect it.