On Mon, 26 Feb 2007 04:24:23 GMT, Lobby Dosser
wrote:

J. Clarke wrote:

On Mon, 26 Feb 2007 02:49:02 GMT, Lobby Dosser
wrote:

Mark & Juanita wrote:

So, given that everything observed is evidence of global warming,
the
thing to ask the proponents of this theory, is "what evidence would
be required to refute this theory?" When everything is cited as
evidence of a theory and nothing as evidence to dispute it, then one
needs to start questioning the person postulating the theory.


Facts:

1. CO2 reflects infrared radiation.

2. The earth gives off infrared radiation.

3. When infrared radiation reflects back to earth, the global
temperature rises

4. Human produced CO2 can be distinguished from that produced by other
sources.

How?

Determining the carbon isotope ratios.

http://www.realclimate.org/index.php?p=87



From your link, "CO2 produced from burning fossil fuels or burning
forests has quite a different isotopic composition from CO2 in the
atmosphere."

How, pray tell, is this capable of distinguishing between CO2 from
human-caused burning forests and CO2 produced by forest fires induced by
natural causes?

Other questions to ask:
"Furthermore, the 13C/12C ratios begin to decline dramatically just as the
CO2 starts to increase -- around 1850 AD."
OK, when and where? Is this a local phenomena, or is this paper making
the claim that starting around 1850, the entire world experienced this
increase?


5. Humans are not necessarily the sole cause of global warming.



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If you're gonna be dumb, you better be tough

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