Seminar Ozean, Eis, Atmosphäre

The subject is about a critical view of the ozone hole theory dealt with in a book titled "Ozonloch das miábrauchte Naturwunder" by Roger A. Maduro and Ralf Schauerhammer. There are attempts to show that FCKWs are rather chemical inaktive and quite heavy (between four and eight times as heavy as other air-molecules) so that it is hardly possible for these molecules to reach the higher stratosphere. Only in this reagion short waved UV-light can set chlor (Cl) free bei photolysis of FCKWs and this chlor then destroyes ozone mentioned in F. Sherwood Rowland and Mario Molinas theory. Because the stratosphere has a higher temperature (absorption of sunlight in ozone) as the far more colder underneath lying troposphere, an inversion is there which builds a barrier for FCKWs. That the only sink of FCKWs is the stratosphere can be doubtful , because experiments have shown that FCKWs can also disappear into the soil (anthills and ricefields). It is possible that FCKWs are passively absorpted or aktivly metabolised by bacteria, but maybe also lipoproteins of plants can solve or adsorb FCKWs. If really Fluor and Chlor are ozone-killers than it is difficult to understand why the comparativly very small amount of these anthropogene emission should have the only destroying effect on ozone in the atmosphere and not the natural emissions. If you concider the huge amount of natural emissions set free by seewater evapuration, by vulcanic activities, by burning biomass or exposed by biomass (especially methylchloride) in see (algae, seewead, plankton) and on land (fungi) and also incomming chloride from the cosmos, like meteorites and stardust.