Ozone Depletion And Climate Change Pdf

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Ozone Layer

Do something for our planet, print this page only if needed. Even a small action can make an enormous difference when millions of people do it! Skip to content. Skip to navigation. If you have forgotten your password, we can send you a new one. Many aerosol propellents contained CFCs before international agreements limited their use.

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We summarise advances in our knowledge of how UV-B radiation — nm together with other climate change factors interact in their influence on terrestrial organisms and ecosystems. Materials used in the exterior of buildings and in construction are routinely exposed to solar UV radiation. Especially in the case of wood and plastic building materials, the service life is determined by their weather-induced deterioration. Combined effects of anthropogenic changes in the environmental condition in marine ecosystems, including UV, CO 2 and temperature. Percentage changes in the UV Index UVI for relative to due to changes in ozone left and aerosols right only.

Why do I care? The ozone layer protects us from excessive UV rays that contribute to skin cancer and other health problems. Figure A. Ozone layer within stratosphere contains highest concentration of ozone. In big cities during the summertime, air quality at the surface can be an issue when ozone and other gases increase to dangerous levels.

Not a MyNAP member yet? Register for a free account to start saving and receiving special member only perks. Below is the uncorrected machine-read text of this chapter, intended to provide our own search engines and external engines with highly rich, chapter-representative searchable text of each book. Introduction Two important climatic issues-stratospheric ozone depletion and greenhouse gas increase-and the apparent connection between them led to the holding of this symposium. Theory predicts that ozone depletion should be occurring as a result of chIorofluorocarbons and haloes in the stratosphere.

There are strong interactions between ozone depletion and changes in climate induced by increasing greenhouse gases (GHGs). Ozone.

Ozone Layer

The atmosphere displays modes of variability whose structures exhibit a strong longitudinally symmetric annular component that extends from the surface to the stratosphere in middle and high latitudes of both hemispheres. The pattern of climate trends during the past few decades is marked by rapid cooling and ozone depletion in the polar lower stratosphere of both hemispheres, coupled with an increasing strength of the wintertime westerly polar vortex and a poleward shift of the westerly wind belt at the earth's surface. Annular modes of variability are fundamentally a result of internal dynamical feedbacks within the climate system, and as such can show a large response to rather modest external forcing.

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Arblaster , J. Meehl , : Contribution of external forcings to southern annular mode trends. Climate , 19 , —

Chemicals discharged into the air that have a direct impact on the environment are called primary pollutants. These primary pollutants sometimes react with other chemicals in the air to produce secondary pollutants. CFC molecules are extremely stable, and they do not dissolve in rain. CFCs were used by industry as refrigerants, degreasing solvents, and propellants.

Can ozone depletion and global warming interact to produce rapid climate change?
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