Chloroflourocarbons were first created in 1928 and first marketted in the 1930's. They grew in popularity as non-toxic refrigerants, so about by 1988 consumption was a billion kg a year. Stratospheric ozone levels have been measured since 1956. In 1974 M.J.Molina and F.S.Rowland published a paper indicating that ozone and the chlorine from CFCs could interact to destroy the ozone if UV light was present. In May of 1985 Farman, Gardinar and Shanklin. published a report in Nature showing that ozone levels had dropped to 10% below normal January levels for Antarctica. Reworking old data indicated that there was evidence for the global ozone depletion as far back as 1976. In 1989 Anderson, J.G., W.H. Brune, M.H. Proffett, published in the Journal of Geophysical Research that ClO had been detected in the atmosphere, showing that CFCs were contributing to ozone depletion.
Ozone depletion occurs in the ozone layer.
Ozone layer depletion is the depletion of ozone. It has very bad affect on environment,
No it is not nature friendly. Depletion of ozone layer is harmful.
Dr Joseph Farman discovered Ozone depletion. He noticed it over Antarctica.
Depletion of ozone layer only brings bad to environment. UV enters and thus causes depletion to ozone.
Ozone layer depletion can be defined as destruction of ozone. This ozone is the ozone layer.
Ozone layer depletion is the depletion of ozone. It has very bad affect on environment,
Ozone depletion occurs in the ozone layer.
The ozone depletion is the thinning of ozone layer. It is most prominent over Antarctica.The ozone depletion is the thinning of ozone layer. It is most prominent over Antarctica.
OzoneOzone was discovered by by Christian Friedrich Schönbein in 1839 - 1840The ozone layer was discovered by Charles Fabry and Henri Buisson in 1913.Depletion of the ozone layer was identified by the US Academy of Sciences in 1976 as being in agreement with the available data.The ozone hole was discovered by Joseph Farman (team leader), Brian Gardiner, and Jonathan Shanklin in 1984 (reported in 1985).See links below.The ozone layer was discovered in 1913 by the French physicists Charles Fabry and Henri Buisson.
Ozone layer depletion is the thinning of ozone layer. It is most evident over the poles on earth.
The depletion of ozone layer started with the advent of CFC's. They react with ozone and destroy it.
No ozone layer and ozone depletion are different terms. Actually they are quiet the opposite terms.
Ozone depletion is the depletion of ozone molecules. It is happening because of CFC's.
No it is not nature friendly. Depletion of ozone layer is harmful.
Dr Joseph Farman discovered Ozone depletion. He noticed it over Antarctica.
Ozone depletion is caused by CFC's.