The Ozone Layer and how it effects Earth

The ozone layer is a region of concentration of the ozone (O3) molecule in the Earths atmosphere. The layer sits at an elevated railway of about 10 to 50 kilometers, with a maximum concentration in the stratosphere at an altitude of approximately 25 kilometers. In recent course of studys, scientists have measurable a seasonal thinning of the ozone layer primarily at the South Pole. This phenomenon is being called the ozone hole.

The ozone layer of course shields Earths life from the unhealthful effects of the suns ultraviolet (UV) radiation. A severe decrease in the concentration of ozone in the ozone layer could lead to the effects of an attach in the incidence of skin ordurecer (UV radiation can destroy acids in DNA), a large increase in cataracts and sun burning, suppression of immune systems in organism, adverse impaction on crops and animals, reducing in the growth of phytoplankton found in the Earths oceans, and cooling of the Earths stratosphere and possibly some surface climate effect.

Ozone is created course in the stratosphere by the combining of atomic oxygen (O) with molecular(a) oxygen (O2). This process is activated by sunlight. Ozone is destroyed naturally by the absorption of ultraviolet radiation, and by the collision of ozone with some other atmospheric atoms and molecules.

Since the late 1970s, scientists have discovered that stratospheric ozone amounts over Antarctica in springtime (September - November) have decreased by as lots as 60 %.



Satellite measurements (NIMBUS 7 - Total Ozone occasion Spectrometer) have indicated a 3 % decrease in ozone amidst 65° North - 65° South since 1978. A reduction of about 3 % per year has been measured for Antarctica where most of the ozone loss is occurring globally. During the late 1990s, large losses of ozone were recorded above Antarctica year after year in the months of...

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