J. Clarke wrote:

On Mon, 26 Feb 2007 18:52:12 GMT, Lobby Dosser
wrote:

J. Clarke wrote:

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

And what we have from there is that humans are producing some
quantityt of CO2 from fossil fuels. Well _duh_.

It's a long way from there to "humans have caused a massive increase
in CO2 levels in the past 150 years",

37%

And that is based on isotope ratios? That's not what you link said.

Then go with the link. Or Whatever.