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Are automobiles a major cause of global warming?

6979 messages,  Last post on Dec 05, 2009 at 4:49 PM

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#31 of 6979
Re: global temperature changes [pisulino] by sls002
Nov 15, 2006 (7:55 am)
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Replying to: pisulino (Nov 13, 2006 4:09 pm)

Global warming is caused by an increase in the "green house gases". Green house gases trap heat in the atmosphere. The basic heat balance of the earth is that the Sun sends short wave energy (light) to the Earth which passes through the atmosphere easily and heats the surface of the earth. This heat must then escape by radiating back through the atomosphere as long wave energy. Green house gases absorb long wave energy, so the heat at the surface passes part way through the atmosphere before it is absorbed. Then the atmosphere re-radiates the longwave energy, both upward and downward, so that some the longwave energy reheats the surface. More green house gases will trap the longwave energy closer to the surface so that less longwave energy gets out of the atmosphere.
 
With say half the green house gases, the longwave energy may get half way out before absorbtion. Now, with twice the green house gases, the long wave energy may get absorbed twice before escaping. Actually, the longwave energy is absorbed continuously, and re-radiated continuously, but some longwave energy will escape without being absorbed. The effect of more green house gases is that less energy will escape from the surface to outer space directly. That means that more energy will re-radiate, which means that the surface will get more secondary heating from the re-radiated long wave energy trying to escape.
 
I hope this helps.
#32 of 6979
States fight for cleaner air, cars by rockylee
Nov 27, 2006 (5:10 am)
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They will tell Supreme Court that EPA must regulate carbon dioxide emissions.
 
http://detnews.com/apps/pbcs.dll/article?AID=/20061127/AUTO01/611270329/1148
 
High Court cases will impact Mich.
 
http://detnews.com/apps/pbcs.dll/article?AID=/20061127/AUTO01/611270375/1148
 
Rocky
#33 of 6979
Supreme Court to hear global warming case this week by rockylee
Nov 27, 2006 (5:32 am)
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http://www.freep.com/apps/pbcs.dll/article?AID=/20061127/BUSINESS01/611270398/10- 14
 
Rocky
#34 of 6979
Supreme Court takes up global warming for first time by rockylee
Nov 29, 2006 (5:32 am)
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http://www.detroitnews.com/apps/pbcs.dll/article?AID=/20061129/UPDATE/611290423/- 1148/AUTO01
 
Rocky
#35 of 6979
Correlation by cti
Dec 14, 2006 (10:55 pm)
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Pluggin the data Shifty provided give a correlation co-efficient of .876. Seems good to me.
 
Doing a simple scatter plot also shows, visually, a good correlation. A plot of the temperature v. time looks very much like the random walk of an increasing stock market. Sometimes it is up, sometimes it is down, but the general trend is a steady increase.
#36 of 6979
EU chief backs rules to force car makers to cut CO2 emissions by rockylee
Jan 25, 2007 (3:01 am)
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http://detnews.com/apps/pbcs.dll/article?AID=/20070123/AUTO01/701230437/1148/AUT- O01
 
Rocky
#37 of 6979
Just plain warming. by elroy5
Jan 25, 2007 (8:38 pm)
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Replying to: rockylee (Jan 25, 2007 3:01 am)

The Earth has been warming since the Ice Age, and there is nothing humans have done, or can do, to change it. I think we are over estimating our capabilities, to think we could. Yes, we are creating pollution, but a good hard rain does wonders for that. Nature controls the temperature, not us.
#38 of 6979
Global Warming Scam by gagrice
Mar 06, 2007 (6:33 am)
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Finally some real scientists that are not afraid to tell the truth.
 
LONDON -- With a packet of claims that are almost certain to defy conventional wisdom, a television documentary to be aired in Britain this week condemns man-made global warming as a myth that has become "the biggest scam of modern times."
The program titled "The Great Global Warming Scandal" and set for screening by TV Channel 4 on Thursday dismisses claims that high levels of greenhouse gases generated by human activity causes climate change. Instead, the program suggests that the sun itself is the real culprit.
The documentary, directed by filmmaker Martin Durkin, is at odds with scientific opinion as outlined in a United Nations report in February, which blames mankind for global warming.
    In his program, Mr. Durkin rejects the concept of man-made climate change, calling it "a lie ... the biggest scam of modern times."
The truth, he says, is that global warming "is a multibillion-dollar worldwide industry, created by fanatically anti-industrial environmentalists, supported by scientists peddling scare stories to chase funding, and propped up by compliant politicians and the media."

 
Global Warming???
#39 of 6979
Re: Global Warming Scam [gagrice] by tpe
Mar 06, 2007 (7:09 am)
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Replying to: gagrice (Mar 06, 2007 6:33 am)

"is a multibillion-dollar worldwide industry, created by fanatically anti-industrial environmentalists,
 
Does that even make sense? Why would a group that is anti-industrial have any desire to create and promote a multi-billion dollar industry? Especially one based upon misinformation. If you want to call them fanatical, environmentalists that's okay, since we all know environmentalists are fanatics. But the insertion of anti-industrial in that sentenced somewhat discredits the intelligence of the person that wrote it.
 
If "green" is a multi-billion dollar industry than the current, entrenched CO2 producing industries are probably multi-trillion. If you take the purely cynical approach that governments will cater to the highest bidder this should be a slam dunk for the global warming myth crowd.
 
The sun is indeed getting hotter but that has been the case from day one yet the planet has gone through cooling and warming cycles despite this.
 
I'm not 100% convinced that mankind is responsible or even plays a role in global warming but the level of CO2 in the atmosphere is definitely increasing. I think the evidence between temperature and CO2 levels is pretty conclusive. The creators of this program must be saying that emitting CO2 and clearing rainforests does not impact the CO2 level in the environment. Okay, then what does cause this level to change?
#40 of 6979
Re: Global Warming Scam [tpe] by gagrice
Mar 06, 2007 (7:19 am)
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Replying to: tpe (Mar 06, 2007 7:09 am)

I don't disagree that we should try to do some things to cut back on CO2. I believe that the Global Warming hysteria being put forth is POLITICALLY motivated. Lots of BS and little science.
 
Ball said it goes all the way back to 1992 and to Kyoto architect, Canadian Maurice Strong.
 
"Maurice Strong has said that the industrial nations are the polluters and (that) it is our duty to get rid of them," said Ball.
 
"The minute you start to question it (global warming), you lose the moral highground," he added.
 
Addressing the hysteria of a global warming that frightens school children who are being told that the earth will burn up, Ball said "thirty years ago, global cooling was the consensus."
 
Ball also challenged the authority of the oft-quoted United Nations Intergovernmental Panel on Climate Change (IPCC) established in 1988 to evaluate the risk of climate change brought on by humans.
 
The UN report by the IPCC was published in February. At the time it was promoted as being backed by more than 2,000 of the world's leading scientists.
 
"There are 2,000 people on the panel, not 2,000 scientists. Most are bureaucrats and politicians," he said.

 
NO Consensus

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