A climatoligist last week stated that the rise of CO2 is following the temperature increase. You have to actually look at the appropriate chart to see this rather than the idea that CO2 increase causes temperature increase, which is something a non-scientist would have trouble doing.
Yes.
It is clear in the Vostok Ice Core data that the CO2 LAGS temperature increases for the last million years.
Of course the alarmists have decided that they only have to say "but then the additional CO2 is a positive feedback and raised the temperature ever higher." Of course, then they have a problem because the temperature stops going up, and the added CO2 stops raising the temperature ever higher, and they have to come up with another cute way to "explain away" that little beauty.
I believe that the blog here has it pretty well nailed as far as CO2 and temperature, though the details may be a little rocky:
http://www.rocketscientistsjournal.com/2006/10/co2_acquittal.html
I have to run now... have fun, all.