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Automotive News & Views Are automobiles a major cause of global warming?
6987 messages, Last post on Dec 07, 2009 at 9:03 AM
You are in the Automotive News & Views Forum. Your Hosts are steve_ & claires
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Replying to: gagrice (Oct 30, 2006 8:21 am)
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Replying to: avalon02wh (Nov 04, 2006 4:59 am) |
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And what ever happened to that story about California trying to sue the automakers over global warming. I read the headline and the story in USA TODAY and then never heard anything else about it. Anyone heard what happened with that?
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Replying to: avalon02wh (Nov 04, 2006 4:59 am) |
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Atmospheric carbon dioxide has been increasing for some time. Burning fossil fuels (oil, coal, natural gas....) adds carbon dioxide to the atmosphere. Automobiles by themselves are only a part of the fossil fuel problem. Carbon dioxide is a green house gas, meaning that it traps heat in the atmosphere, which leads to warming of the earths surface. The sunlight adds energy to the earths surface. This energy, which comes in as short wave energy, must be released back into space as long wave energy. Carbon dioxide slows the long wave energy transmission through the atmosphere. One point that should be noted, earth has had ice ages in the recent past. Perhaps, without the increased carbon dioxide, we are due for another? So, things could be worse, or at least an ice age would probably not be better. |
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The globe warmed about a quarter degree celsius between 1900 and 1950. From the early fifties till the late seventies, it cooled about an eigth degree C. That was when activists were screaming that global cooling would end all life on earth, and we 'must do something immediately'. Thirty years later, global warming is going to end all life on earth, according to the same people. Use of fossil fuels was not curtailed in the period of cooling. We have insufficient data to show human activity is a significant cause of global temperature change. Those who claim we do are invariably seeking money for their research, or have political goals. I support energy conservation for other reasons, but am not in a state of panic over global warming. Harry
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Replying to: oldharry (Nov 05, 2006 7:44 pm) Year CO2 Temp 1959 315.98 14.07 1960 316.91 14.01 1961 317.65 14.07 1962 318.45 14.04 1963 318.99 14.09 1964 319.52 13.83 1965 320.03 13.90 1966 321.37 13.98 1967 322.18 13.98 1968 323.05 13.96 1969 324.62 14.08 1970 325.68 14.02 1971 326.32 13.89 1972 327.46 14.00 1973 329.68 14.12 1974 330.25 13.89 1975 331.15 13.94 1976 332.15 13.86 1977 333.90 14.11 1978 335.50 14.02 1979 336.85 14.10 1980 338.69 14.16 1981 339.93 14.22 1982 341.13 14.07 1983 342.78 14.25 1984 344.42 14.07 1985 345.90 14.04 1986 347.15 14.12 1987 348.93 14.27 1988 351.48 14.30 1989 352.91 14.19 1990 354.19 14.37 1991 355.59 14.32 1992 356.37 14.14 1993 357.04 14.14 1994 358.88 14.25 1995 360.88 14.38 1996 362.64 14.24 1997 363.76 14.40 1998 366.63 14.56 1999 368.31 14.33 2000 369.48 14.31 2001 371.02 14.47 2002 373.10 14.54 2003 375.64 14.52
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Look at 1959, when the CO2 was 315.98 and Temp was 14.07 Then in 1984, CO2 was 344.42 and Temp was STILL 14.07 And in 1982, CO2 was 341.13 and Temp was STILL 14.07 Then between 1988 and 1989, CO2 went up and Temp went down. Again in 1990 and 1991, CO2 went up and Temp went down. The only "upward trend" I notice is that both data points went up together from 2000 thru 2003. But then 1998 was hotter than 2003, so how did CO2 fall into that equation? Anyway - science tells us that CO2 is a problem, and there are LOTS of other sources of CO2 besides cars.
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http://www.oism.org/pproject/s33p36.htm This paper reviews papers that have been published. There are a number of graphs that some of you may find interesting. You will need to read the paper to understand them and I do not claim to have a clear understanding myself. |
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Replying to: larsb (Nov 06, 2006 7:19 am) The only conclusion we can draw from that is the Hybrids have caused the increase in GHG 
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