It has been observed before, temperature driving CO2 concentration with a lag of about 9 months: http://icecap.us/index.php/go/joes-...ry_cause_of_global_warming_the_future_can_no/ It appears that we have a positive feedback element here. If it's warmer, it causes increase of CO2. Increase of CO2 appears to cause warming which increases CO2 etc. However as posted before the total of feedbacks in the atmosphere is negative (Karner 2002, 2005, 2007) so this effect (CO2 causing warming) appears to be smaller than desired/ordered.
