Common ozone depletion myths There is overwhelming evidence that humans are

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Common ozone depletion myths There is overwhelming evidence that humans are

Berean University of the Assemblies of God, US has reference to this Academic Journal, Common ozone depletion myths There is overwhelming evidence that humans are responsible in consideration of the Antarctic ozone “hole”. And there is strong evidence that the ozone layer elsewhere has been damaged. Three scientists who developed the ozone depletion theory were awarded the Nobel Prize in chemistry. With so much evidence in consideration of an environmental crises, it is little wonder that so many anti-environmental myths have developed about ozone depletion. Common myths about ozone depletion: Myth: CFCs cannot reach the stratosphere because they are heavier than air. Myth: CFCs cannot reach the stratosphere because they are heavier than air. Fact: Air in the lower atmosphere (which extends far above the stratosphere) moves in masses, not as individual molecules. A number of studies have found CFCs in addition to the products of their breakdown in the stratosphere (Rowland, EPA).

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Myth: Volcanoes in addition to other natural sources contribute much more chlorine than CFCs so that the ozone layer. Myth: Volcanoes in addition to other natural sources contribute much more chlorine than CFCs so that the ozone layer. Fact: ÿChlorine compounds from natural sources are soluble, in addition to so are washed out of the atmosphere. CFCs, by contrast, are not soluble in addition to so are able so that reach the stratosphere. A number of studies have shown that the majority of chlorine in the stratosphere comes from man-made chemicals (Rowland, Taubes, Russell et al, EPA). Myth: The Antarctic ozone “hole” was there all along, it was discovered in the 1970’s because that’s when satellite measurements started.

Myth: The Antarctic ozone “hole” was there all along, it was discovered in the 1970’s because that’s when satellite measurements started. Fact: The hole was discovered using a ground based instrument that had been in use since 1956. There was no hole until about 1976. That means about 20 years alongside no hole. Since the 70s the hole has continued so that increase in size in addition to intensity (Farman, et al, Jones & Shanklin). Myth: The “hole” was present when the first measurements were made in 1956. Myth: The “hole” was present when the first measurements were made in 1956. Fact: The first ozone measurements made in the Antarctic were lower than similar measurements made in the Arctic. However, this is the natural condition, not the decrease that is referred so that as the ozone “hole”. As noted above, there was no “hole” during the first 20 or so years of measurement. (Parson, Christie).

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Myth: Some French researchers found an ozone hole in 1958. Myth: Some French researchers found an ozone hole in 1958. Fact: Paul A. Newman (Newman) looked at all the facts in addition to found that “There is no credible evidence in consideration of an ozone hole in 1958.? Myth: Spray cans deplete the ozone layer. ÿ

Myth: Spray cans deplete the ozone layer. Fact: ÿSpray cans (in the United States) have not used CFCs as propellants in consideration of about 20 years. ÿ Myth: ÿOf course there is an ozone hole in the winter, there is no sunlight so that make new ozone. ÿ Myth: ÿOf course there is an ozone hole in the winter, there is no sunlight so that make new ozone. Fact: The ozone hole occurs in the spring, after the sunlight returns. ÿThere is little destruction or creation of ozone during the winter (Parson) ÿ

Myth: ÿDuPont supported the ban on freon because the patent was about so that run out. ÿ Myth: ÿDuPont supported the ban on freon because the patent was about so that run out. Fact: ÿThe patent in consideration of making freon was issued in 1928, it ran out in the 1940s, long before any concern about ozone depletion. ÿ(The History of Freon) ÿ References Christie, Maureen, The Ozone Layer: ÿA Philosophy of Science Perspective, Cambridge University Press, 2000 Farman, et al., “Large Losses of Total Ozone in Antarctica Reveal Seasonal ClOx/NOx Interaction”, Nature, May 16, 1985, pp 207-210. Jones & Shanklin, “Continued Decline of Total Ozone over Halley, Antarctica, since 1985”, Nature, August 3, 1995 pp 409-411. Newman, Paul A., “Antarctic Total Ozone in 1958”, Science, April 22, 1994, pp 543-546. Parson, Robert wrote a lengthy FAQ on ozone depletion, the best source of information I have found. Rowland, Sherwood, “The Need in consideration of Scientific Communication alongside the Public” Science, June 11, 1993, pp 1571-1576. Russell, et al, “Satellite Confirmation of the Dominance of Chlorofluorocarbons in the Global Stratospheric Chlorine Budget” Nature, February 8, 1996, pp 526-529. Taubes, Gary, “The Ozone Backlash”, Science, June 11, 1993, pp 1580-1583.

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