March 17, 2007
A warming trend of about 0.7 to 1.5°F occurred during the 20th century. Warming occurred in both the Northern and Southern Hemispheres, and over the oceans (NRC, 2001).Is this accurate? Not accurate? Do we have any climatologists in the audience? If so, please weigh in.
Posted by: Ragnar at
01:42 PM
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The major problem is that the thermometer was invented at about the same time the Little Ice Age was ending and there were no temperature records from the Medieval Warm Period aside from reports of vinyards in England, increased crop harvests in Northern Europe and less pack ice in the Northern Atlantic. All temperature recordings taken since the invention of the thermometer show a gradual warming ... which should be just about peaked now. I sincerely doubt we are going to get much more warming.
The notion that Gore is trying to pass off to people is to look at the last hundred years and use that to project the next 100.
Posted by: crosspatch at March 17, 2007 03:31 PM (y2kMG)
Posted by: crosspatch at March 17, 2007 03:36 PM (y2kMG)
Well if "they" are for it then I'm certainly against it.
Posted by: John Ryan at March 17, 2007 03:46 PM (TcoRJ)
Posted by: DAT at March 17, 2007 04:15 PM (SIJnF)
Some answers can be found at An Inconvenient Skeptic. Lot's of vids, documentaries and commentary not found in the MSM. Go figure!
Posted by: Hot Air at March 17, 2007 04:23 PM (zIOCj)
Posted by: Hot Air at March 17, 2007 04:27 PM (zIOCj)
A few of you may of already surmized that I have a PHD in Climaxtology. I can say with complete certainty that if hillary is elected, the amount of man made climaxic heat that is affecting current global warming will in deed come to a complete stop and a great cooling will occur. However, an epidemic of DSBU will ensue and we will all kill each other. Why just the other day, Rooster was attacked by a bull suffering from DSBU and he had to beat him off with a stick. It has more to do with the oceans releasing CO2 and less to do with our pal al. It's when things stop changing that we will have to worry.....
Posted by: wb at March 17, 2007 07:09 PM (s6CsG)
Posted by: crosspatch at March 17, 2007 08:21 PM (y2kMG)
Really? What an amazing coincidence! Algore has carbon credits for sale in a new company that he happens to chair!
Funny, that!
Posted by: Good Lt at March 17, 2007 08:54 PM (yMbfY)
Posted by: crosspatch at March 17, 2007 09:01 PM (y2kMG)
Posted by: Jesusland Carlos at March 17, 2007 09:26 PM (yJKSD)
Posted by: greyrooster at March 17, 2007 09:37 PM (XDiqx)
Posted by: wb at March 17, 2007 09:50 PM (s6CsG)
Posted by: Michael Weaver at March 17, 2007 10:43 PM (2OHpj)
Posted by: wb at March 17, 2007 11:43 PM (s6CsG)
Posted by: greyrooster at March 18, 2007 12:56 AM (XDiqx)
Posted by: Michael Weaver at March 18, 2007 05:28 AM (2OHpj)
The theory of AGW predicts a few things that we have seen or should be seeing. Some of these predictions (as I understand it) are as follows:
1) The warming should be spread over the globe, but with slightly greater rise at low and mid latitudes than at high latitudes.
2) Highest warming should occur, not at the surface, but at 2-3 kilometers above the surface (I’ve even heard that it is greatest at 10km, but I’m not sure if that is correct)
3) Most of the temperature rise will come from positive feedback mechanisms which will kick-in by the smaller push from increased CO2.
4) The plot of the average temperature vs. CO2 concentration should track each other, except for the amplifications from the positive feedback.
What we are actually seeing is the following:
A) The Antarctic has been getting colder over the last decade.
B) Highest warming has occurred at the surface
C) CO2 concentrations increased appreciably from 1940 through 1975 yet the average temperatures fell over this period.
D) The plot of the average temperature vs. solar activity track each other with good uniformity.
E) Adjustments for urban heat island effect have not been properly considered in some cases.
F) Ice core data (Mr. Gore’s graph on his “documentaryâ€) shows CO2 increases generally lag behind increases in temperature by roughly 600 years. Some of the increased CO2 in the atmosphere we are seeing now is likely from the medieval warming period.
NASA data indicates atmospheres of both Mars and Venus have warmed slightly over the same period.Posted by: RicardoVerde at March 18, 2007 09:05 AM (QrIXC)
My conclusion (for whatever it’s worth) is that the majority of the increased temperature since the mid 1970’s is from a combination of increased solar activity and increased urban encroachment into formerly rural areas. Do I “deny†an increase from the greenhouse effect? No, I do not. My best guess from the data I’ve seen is that 0.1-0.3C of the increase is from CO2, and that is starting in the mid 1800’s. There is no evidence that any catastrophic feedback mechanism really exists. There is some evidence that slightly warmer temperatures would be beneficial to man (such as increased crop yields).
Having said all that, do I think it is a good idea to continue burning hydrocarbons (especially petroleum) for fuel? No. We really do need to look into increased efficiency nuclear plants, especially low-waste type plants. Oil should really be saved for making plastic and petrochemical products, but I don’t recommend ANY multinational groupthink panel to regulate its use.
Posted by: RicardoVerde at March 18, 2007 09:06 AM (QrIXC)
Mars Emerging from Ice Age Due to Global Warming:
http://www.space.com/scienceastronomy/mars_ice-age_031208.html
http://www.google.com/search?hl=en&q=global+warming+Mars&btnG=Google+Search
http://news.nationalgeographic.com/news/2007/02/070228-mars-warming.html
Global Warming on Pluto Puzzles Scientists:
http://www.space.com/scienceastronomy/pluto_warming_021009.html
http://www.google.com/search?hl=en&q=global+warming+Pluto&btnG=Search
Global Warming on Jupiter:
http://motls.blogspot.com/2006/05/global-warming-on-jupiter.html
Wow.... didn't know my SUVs exhaust is THAT powerful....
Posted by: Jerry at March 18, 2007 04:53 PM (WqUu+)
Posted by: tbone at March 19, 2007 10:23 AM (HGqHt)
Posted by: rob at March 19, 2007 02:09 PM (QpkBe)
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