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#1
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posted to rec.boats
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![]() "basskisser" wrote in message ups.com... .... accumulation of carbon dioxide, methane and other heat-trapping greenhouse gases in the atmosphere - byproducts of power plants, automobiles and other fossil fuel burners. Carbon dioxide and methane? I thought those were products of oxygen-breathing mammals and flatuating cows. |
#2
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posted to rec.boats
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![]() NOYB wrote: "basskisser" wrote in message ups.com... .... accumulation of carbon dioxide, methane and other heat-trapping greenhouse gases in the atmosphere - byproducts of power plants, automobiles and other fossil fuel burners. Carbon dioxide and methane? I thought those were products of oxygen-breathing mammals and flatuating cows. I already predicted what you'd say. |
#3
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posted to rec.boats
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![]() "basskisser" wrote in message ups.com... NOYB wrote: "basskisser" wrote in message ups.com... .... accumulation of carbon dioxide, methane and other heat-trapping greenhouse gases in the atmosphere - byproducts of power plants, automobiles and other fossil fuel burners. Carbon dioxide and methane? I thought those were products of oxygen-breathing mammals and flatuating cows. I already predicted what you'd say. yes, they had to find some other "threat" since global temps started dropping after 2004. It's global acid, that's why those coral atolls are sinking, they are dissolving. |
#4
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posted to rec.boats
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yes, they had to find some other "threat"
I'm Curious. Who are "They" and what could "They" possibly have to gain from making this stuff up? -- Message posted via http://www.boatkb.com |
#5
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posted to rec.boats
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I was in the laboratory measuring pH when I read the article published
on the increasing pH because of global warming. If you read the original article you would see that the difference in pH they are talking about is in the neighborhood of 0.03 pH units. This is insignificant and does not indicative anything except the precision of the pH measurement and the sampling. Since the difference is the precision of the measurements there is nothing to do with global warming. pH is a theoretical amount of Hydrogen molecules in the solutions. In practice pH is a measure of the impurities in water, and is significantly affected by the temperature of the solution. It is also affected by the actual materials in the solutions as the the amount of Hydrogen ions are affected by the interactions of the compounds in the solutions. pH is measured using the electrical properties of the solution. Because of the quality of the electronics the precision of the measurements are several powers more accurate than the precision of the chemical properties that are being measured. The electronics are standardized against two reference solutions. The accuracy of these solutions is about +/- 0.01 based on the suppliers of the standards. See a typical specification sheet for one of those standards is at http://www.coleparmer.com/catalog/pr...sp?sku=0594242 In practice the precision of laboratory measurements of pH is about +/- 0.03 one one sample. When you take dozens of samples there is additional error. So you can see the differences they are trying to get funding to study is nothing but the precision of the measurement of the pH. (If you google you can find many papers on the laboratory precision of pH measurements.) Because of the inaccuracy in pH, the specifications for the drugs you take are usually stated to 0.1 pH units. Now, if someone can explain to me how they can say there is a 0.4 degree change in the mean temperature of the earth when the daily temperature difference across the surface of the earth is about 100 degrees. I don't know much about temperature reading and statistics. scbafreak via BoatKB.com wrote: yes, they had to find some other "threat" I'm Curious. Who are "They" and what could "They" possibly have to gain from making this stuff up? |
#6
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posted to rec.boats
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![]() keith_nuttle wrote: I was in the laboratory measuring pH when I read the article published on the increasing pH because of global warming. If you read the original article you would see that the difference in pH they are talking about is in the neighborhood of 0.03 pH units. This is insignificant and does not indicative anything except the precision of the pH measurement and the sampling. Since the difference is the precision of the measurements there is nothing to do with global warming. pH is a theoretical amount of Hydrogen molecules in the solutions. In practice pH is a measure of the impurities in water, and is significantly affected by the temperature of the solution. It is also affected by the actual materials in the solutions as the the amount of Hydrogen ions are affected by the interactions of the compounds in the solutions. pH is measured using the electrical properties of the solution. Because of the quality of the electronics the precision of the measurements are several powers more accurate than the precision of the chemical properties that are being measured. The electronics are standardized against two reference solutions. The accuracy of these solutions is about +/- 0.01 based on the suppliers of the standards. See a typical specification sheet for one of those standards is at http://www.coleparmer.com/catalog/pr...sp?sku=0594242 In practice the precision of laboratory measurements of pH is about +/- 0.03 one one sample. When you take dozens of samples there is additional error. So you can see the differences they are trying to get funding to study is nothing but the precision of the measurement of the pH. (If you google you can find many papers on the laboratory precision of pH measurements.) Because of the inaccuracy in pH, the specifications for the drugs you take are usually stated to 0.1 pH units. Now, if someone can explain to me how they can say there is a 0.4 degree change in the mean temperature of the earth when the daily temperature difference across the surface of the earth is about 100 degrees. I don't know much about temperature reading and statistics. It isn't insignificant when you think of it in global terms. The same thing with temperature. |
#7
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posted to rec.boats
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Insignificant in this case was used in a statistical sense. The
difference they are attributing to global warming is smaller than the error in the instruments they are using for the measurement. In other words they would see greater differences on multiple measurements on the same solution in the lab, than the difference they are attribute to global warming, There are no instruments capable of detecting the difference attributed to global warming being made today. It is like measuring teaspoons size quantities with a gallon container. Or setting up your table saw with a cloth sewing tape measure. basskisser wrote: keith_nuttle wrote: I was in the laboratory measuring pH when I read the article published on the increasing pH because of global warming. If you read the original article you would see that the difference in pH they are talking about is in the neighborhood of 0.03 pH units. This is insignificant and does not indicative anything except the precision of the pH measurement and the sampling. Since the difference is the precision of the measurements there is nothing to do with global warming. pH is a theoretical amount of Hydrogen molecules in the solutions. In practice pH is a measure of the impurities in water, and is significantly affected by the temperature of the solution. It is also affected by the actual materials in the solutions as the the amount of Hydrogen ions are affected by the interactions of the compounds in the solutions. pH is measured using the electrical properties of the solution. Because of the quality of the electronics the precision of the measurements are several powers more accurate than the precision of the chemical properties that are being measured. The electronics are standardized against two reference solutions. The accuracy of these solutions is about +/- 0.01 based on the suppliers of the standards. See a typical specification sheet for one of those standards is at http://www.coleparmer.com/catalog/pr...sp?sku=0594242 In practice the precision of laboratory measurements of pH is about +/- 0.03 one one sample. When you take dozens of samples there is additional error. So you can see the differences they are trying to get funding to study is nothing but the precision of the measurement of the pH. (If you google you can find many papers on the laboratory precision of pH measurements.) Because of the inaccuracy in pH, the specifications for the drugs you take are usually stated to 0.1 pH units. Now, if someone can explain to me how they can say there is a 0.4 degree change in the mean temperature of the earth when the daily temperature difference across the surface of the earth is about 100 degrees. I don't know much about temperature reading and statistics. It isn't insignificant when you think of it in global terms. The same thing with temperature. |
#8
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posted to rec.boats
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keith_nuttle wrote:
If you read the original article you would see that the difference in pH they are talking about is in the neighborhood of 0.03 pH units. This is insignificant and does not indicative anything except the precision of the pH measurement and the sampling. Since the difference is the precision of the measurements there is nothing to do with global warming. In a controlled laboratory environement you can measure with .001 precision. But that's not easy. pH is a theoretical amount of Hydrogen molecules in the solutions. In practice pH is a measure of the impurities in water, and is significantly affected by the temperature of the solution. It is also affected by the actual materials in the solutions as the the amount of Hydrogen ions are affected by the interactions of the compounds in the solutions. You are mixing several things together. pH is a negative logarithm of H+ ions activity in water. Period. Presence of other substances may change this activity, but you are not measuring these substances, you are measuring pH. pH is measured using the electrical properties of the solution. Because of the quality of the electronics the precision of the measurements are several powers more accurate than the precision of the chemical properties that are being measured. No idea what you mean by "precision of chemical properties". No such animal AFAIK. The electronics are standardized against two reference solutions. The accuracy of these solutions is about +/- 0.01 based on the suppliers of the standards. See a typical specification sheet for one of those standards is at http://www.coleparmer.com/catalog/pr...sp?sku=0594242 http://www.ph-meter.info/pH-electrod...ration-buffers Calibration buffers have pH measured with +/- 0.001 accuracy, and that's the real limit of pH measurements. Hard to reach, but it can be done. In practice the precision of laboratory measurements of pH is about +/- 0.03 one one sample. When you take dozens of samples there is additional error. So you can see the differences they are trying to get funding to study is nothing but the precision of the measurement of the pH. (If you google you can find many papers on the laboratory precision of pH measurements.) See above. Attainable limit is 30 times lower than you suggest. 0.03 is a good accuracy in the standard lab environement. Now, if someone can explain to me how they can say there is a 0.4 degree change in the mean temperature of the earth when the daily temperature difference across the surface of the earth is about 100 degrees. I don't know much about temperature reading and statistics. Simplest approach will be to average all measurement done by all meterological services in the whole world during whole year. As they stick to precise termometers and to precise procedures, data are comparable on a year to year basis (or - more general - any period to period basis). And I suppose the real thing is done in similar way, probably with weighted averaging to account for non-uniform distribution of measuring points. Borek -- http://www.chembuddy.com http://www.ph-meter.info |
#9
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posted to rec.boats
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![]() "scbafreak via BoatKB.com" u25927@uwe wrote in message news:690cec9d084bd@uwe... yes, they had to find some other "threat" I'm Curious. Who are "They" and what could "They" possibly have to gain from making this stuff up? Yes, lets list who they are and maybe we can find out why they are biased against developing nations. -- Message posted via http://www.boatkb.com |
#10
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posted to rec.boats
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basskisser wrote:
NOYB wrote: "basskisser" wrote in message roups.com... .... accumulation of carbon dioxide, methane and other heat-trapping greenhouse gases in the atmosphere - byproducts of power plants, automobiles and other fossil fuel burners. Carbon dioxide and methane? I thought those were products of oxygen-breathing mammals and flatuating cows. I already predicted what you'd say. Cite? |
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