On Tue, 03 Feb 2009 23:13:33 -0800, Gunner Asch
wrote:

On Wed, 04 Feb 2009 00:23:43 -0600, Don Foreman
wrote:




It is clear that CO2 concentraton has increased in recent times. It is
also clear that the planet is warming. What isn't clear is whether or
not there is a causitive link, since climatic changes do occur and
have occurred for other reasons. A strong correllation between
greenhouse gas concentrations and global avg temp would suggest a
connection, but the suggestion is far from a proof and the
correllation is not that strong. Therein lies the fertile ground for
argument, debate, political noise and pseudoscientific babblebull****.
You're sure right that neither you nor Larry are gonna "run the
numbers" using calculators or personal computers.





One side claims warming is caused by increased greenhouse gases
Another side claims greenhouse gases are caused by increased warming.

Since CO2 tends to show up AFTER warming events, not before.....

That's the "positive feedback" that Mark Rand alludes to. It's even
more true of water vapor: as things get warmer more water is
vaporized, etc etc.