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#151
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It's also worth noting that you're comparing actual measurements of global mean temperature with local temperature in Antarctica from sampled ice cores. I would not consider that an apple-to-apple comparison and I'd expect the latter to have much more variation.
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2004 VW Jetta TDI (manual) Past MB's: '96 E300D, '83 240D, '82 300D, '87 300D, '87 420SEL |
#152
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Yes, that is what I am saying.
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1979 240D- 316K miles - VGT Turbo, Intercooler, Stick Shift, Many Other Mods - Daily Driver 1982 300SD - 232K miles - Wife's Daily Driver 1986 560SL - Wife's red speed machine |
#153
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All of that data is based on ice cores.
Here is more from NOAA: http://www.ncdc.noaa.gov/paleo/globalwarming/home.html
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1979 240D- 316K miles - VGT Turbo, Intercooler, Stick Shift, Many Other Mods - Daily Driver 1982 300SD - 232K miles - Wife's Daily Driver 1986 560SL - Wife's red speed machine |
#154
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RichC/240Joe/DieselAddict, as I said before it would be a waste of everyone's time because there is no way anyone can change your mind.
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#155
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Quote:
http://www.ncdc.noaa.gov/paleo/globalwarming/what.html Quote:
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2004 VW Jetta TDI (manual) Past MB's: '96 E300D, '83 240D, '82 300D, '87 300D, '87 420SEL |
#156
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Water vapor is the single largest greenhouse gas. It accounts for more than double the warming effect of CO2.
CO2 has been rising and falling in conjunction with global temperature long before Humans were around.
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1979 240D- 316K miles - VGT Turbo, Intercooler, Stick Shift, Many Other Mods - Daily Driver 1982 300SD - 232K miles - Wife's Daily Driver 1986 560SL - Wife's red speed machine |
#157
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No dispute there. Water vapor has been more or less constant though while CO2 has been going up significantly since the industrial revolution. In fact IIRC CO2 is now higher than it has been in the last 600,000 years or so.
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2004 VW Jetta TDI (manual) Past MB's: '96 E300D, '83 240D, '82 300D, '87 300D, '87 420SEL |
#158
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Quote:
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#159
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For the last time, yes it is widely accepted in the scientific community that increased CO2 is responsible for the recent warming, but of course that's not the only thing that has driven climate change over the course of Earth's history. I don't know how to explain that any more clearly for you to comprehend this simple fact.
Think of CO2 as your car's windows. If you let your car sit in the sun, the sun's radiation is not the only factor that determines the temperature inside your car. If you close all your windows it will obviously be hotter inside than if you leave them open. That's the same effect that increased CO2 has on Earth.
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2004 VW Jetta TDI (manual) Past MB's: '96 E300D, '83 240D, '82 300D, '87 300D, '87 420SEL |
#160
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While this chart shows increasing temperatures over the last 35 years (excluding the last 7 years). It's no different from the rise in temperatures in the early 1800's and the far larger increase in the early 1700's.
I wonder if they had any carbon offset programs back then?
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Michael LaFleur '05 E320 CDI - 86,000 miles '86 300SDL - 360,000 miles '85 300SD - 150,000 miles (sold) '89 190D - 120,000 miles (sold) '85 300SD - 317,000 miles (sold) '98 ML320 - 270,000 miles (sold) '75 300D - 170,000 miles (sold) '83 Harley Davidson FLTC (Broken again) :-( '61 Plymouth Valiant - 60k mikes 2004 Papillon (Oliver) 2005 Tzitzu (Griffon) 2009 Welsh Corgi (Buba) |
#161
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No, but they did begin to put emissions devices on their mules.
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1979 240D- 316K miles - VGT Turbo, Intercooler, Stick Shift, Many Other Mods - Daily Driver 1982 300SD - 232K miles - Wife's Daily Driver 1986 560SL - Wife's red speed machine |
#162
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Quote:
The same cannot be said of the rise in temps in the 2nd half of the 20th century. Increased CO2 is the only explanation.
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2004 VW Jetta TDI (manual) Past MB's: '96 E300D, '83 240D, '82 300D, '87 300D, '87 420SEL |
#163
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CO2 absorbs energy in a narrow bandwidth and absorbs it logarithmically and at some point, adding more won't change anything. If the pre-industrial age CO2 density was 280 ppm, the first half of it's heating effect was caused by 20 ppm. The second half by 260 ppm. Most writing say this accounts for a 1.5 deg C rise in average temperatures. At this rate we would need a density of 9000 ppm to double the heating effect, to add another 1.5 deg C. I don't think we'll get there.
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Michael LaFleur '05 E320 CDI - 86,000 miles '86 300SDL - 360,000 miles '85 300SD - 150,000 miles (sold) '89 190D - 120,000 miles (sold) '85 300SD - 317,000 miles (sold) '98 ML320 - 270,000 miles (sold) '75 300D - 170,000 miles (sold) '83 Harley Davidson FLTC (Broken again) :-( '61 Plymouth Valiant - 60k mikes 2004 Papillon (Oliver) 2005 Tzitzu (Griffon) 2009 Welsh Corgi (Buba) Last edited by mplafleur; 08-08-2008 at 12:00 PM. |
#164
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I don't know where you're pulling the numbers from in your last paragraph. From what I've read the average temp in this century is projected to rise up to 10F (if we do nothing) and 9000 ppm CO2 is definitely NOT required for that. 10F may not sound like much, but keep in mind this is the average temp which historically changes very slowly so this is a huge jump and the most worrying aspect is the temperature extremes that come along with such a drastic change in the average.
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2004 VW Jetta TDI (manual) Past MB's: '96 E300D, '83 240D, '82 300D, '87 300D, '87 420SEL |
#165
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We never got to a point where adding such a small amount of CO2 changed anything.
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