Short essay on ozone layer depletion and its effects. Effects Of Ozone Layer Depletion And Its Remedial Measures Essay 2019-01-30
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Ozone Layer: Its Importance and causes of Depletion
Problems of ozone depletion have substantial effects on bio diversity in that it's exposed to ultraviolet rays that reach the earth. Governments and nongovernmental organizations have been in… 1230 Words 5 Pages Ozone Depletion Atmospheric ozone layer depletion is a serious problem currently facing the world. Human activity has a very large effect on the air in our environment. A free chlorine atom reacts with an ozone molecule O3 and forms chlorine monoxide ClO and a molecule of oxygen. The term Ozone depletion is used to describe two distinct, but related, observations: a slow, steady decline, of about 3% per decade, in the total amount of ozone in the Earth's stratosphere during the past twenty years, and a much larger, but seasonal, decrease in stratospheric ozone over the Earth's polar regions during the same period. Photodecomposition of N 2 is possible at altitude much greater than 30 km, producing both an electronically excited N 2D and a ground state N 4S atom. Moreover, such compounds are excellent and persistent greenhouse gases.
Ozone Layer: Its Importance and causes of Depletion
This is what which leads to almost 80 percent of the total ozone layer depletion. Ozone acts as a powerful oxidant because of its ability to remove electrons from other molÂecules. Ozone depletion can also result in a stratospheric cooling and greenhouse effect in the lower layer. The highest regions of the stratosphere contain about 90% of all ozone. Tropospheric ozone is undesirable since it is a pollutant these, causing photochemical smog and greenhouse effect.
The Protocol was initially adopted on 11 December, 1997 in Kyoto, Japan, and entered into force on 16 February, 2005. They were made for coolants in refrigerators and cleaning supplies. A single chlorine atom would keep on destroying ozone for upto two years the time scale for transport back down to the troposphere were it not for reactions that remove them from this cycle by forming reservoir species such as hydrochloric acid and chlorine nitrate. In 1987, it was agreed to phase out the ozone-depleting chemicals at a Convention in Montreal. The climatic changes, as seen above, affect the population in negative ways.
This destruction is of a serious magnitude, and it not only calls for the formulation of policies but also implementation of these policies to curb this global menace. Ozone Creation: Three forms or allotropes of oxygen are involved in the ozone-oxygen cycle Oxygen atoms or atomic oxygen, O, oxygen molecules, O 2 and ozone, O 3. Ozone in the lower atmosphere contributes to global warming and climate change. This is due to the fact that ozone is formed from oxygen and that actions or processes that cut down the viable plant life that make oxygen lead to depletion of the ozone. These conflicts arise due to competition for limited natural resources rendered scarce by the climactic changes.
About one million of these people will die. Index Terms — Bio effects, chlorofluorocarbon, Ozone Layer Depletion, Protection. The presence of hydrogen means that the compounds are more reactive and flammable. Most of it is concentrated in the ozone layer, a region located in the stratosphere several miles above the surface of the Earth. In 2001, the Antarctic ozone hole reached a maximum size of more than 26.
Ozone Layer: Its Importance and causes of Depletion
Role of Ozone Layer The ozone layer, found in two regions of the Earth's atmosphere, plays pivotal roles to earth's life. It concludes with giving recommendations on how to curb further destruction of the ozone layer by offering insights of how its initial status can be regained. Rush Limbaugh argues that humans are safe, because volcanic chlorine has been working on the ozone layer longer than man-made chlorine, and yet we're still here. It creates many difficulties for the earth. As a result, both chlorine and bromine contribute significantly to the overall ozone depletion. The canopy of ozone layer is with variable extent less dense near the surface of the Earth compared to the height of 30 km. At any given time, ozone molecules are constantly formed and destroyed in the stratosphere.
The stratosphere reaches 30 miles above the Earth, and at the very top it contains ozone. Introduction Ozone is a gas that occurs naturally in our atmosphere. According to British scientists, this surface ozone is responsible for the substantial reduction in the yields of major crops like wheat and rice. Article shared by It is tri atomic oxygen 0 3 and is a gas found in the troposphere as well as in the stratosphere. The stratosphere is located directly above the troposphere, about 10-50 kilometers above the planet, and houses the ozone layer at an altitude of 20-30 kilometers.
Essay on the Effects of Ozone Layer Depletion and its Remedial Measures
Human beings are supposed to be the custodians of the environment but, unfortunately, they are the ones behind its destruction. As results of ozone depletion, the increased ultraviolet solar radiation in turn would raise the temperature of the earth and thus effect line forms as well as the environment. At any given time, ozone molecules are constantly formed and destroyed in the stratosphere by natural processes. Research indicates that such changes alter the distribution of some infectious diseases and may cause death due to heat waves. September 16 is declared as the International Day for preservation of ozone by the Montreal Protocol 1987.
