Experiments
Rowland performed many measurements of the atmosphere. One experiment included collecting air samples at various cities and locations around the globe to determine CCl3F North-South mixing. By measuring the concentrations at different latitudes, Rowland was able to see that CCl3F was mixing between hemispheres quite rapidly. The same measurement was repeated 8 years later and the results showed a steady increase in CCl3F concentrations. Rowland's work also showed how the density of the ozone layer varied by season increasing in November and decreasing until April where it levels out for the summer only to increase in November. Data gained throughout successive years showed that although the pattern was consistent, the overall ozone levels were dropping. With this data, the Montreal Protocol was passed and CFC emissions were regulated within Canada, the United States, Sweden, Norway, and all other major industrial countries.
Read more about this topic: Frank Sherwood Rowland
Famous quotes containing the word experiments:
“The man who invented Eskimo Pie made a million dollars, so one is told, but E.E. Cummings, whose verse has been appearing off and on for three years now, and whose experiments should not be more appalling to those interested in poetry than the experiment of surrounding ice-cream with a layer of chocolate was to those interested in soda fountains, has hardly made a dent in the doughy minds of our so-called poetry lovers.”
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“My experiments did not turn out quite like yours, Henry. But science, like love, has her little surprises.”
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