>>if indeed there is a high degree of correlation between the rise in CO2 and temperature?
This shows why it's dangerous to draw conclusions from short-term climate graphs, as we were arguing about earlier. Here is the co2/temperature correlation for the years between 2002 and 2008 [shorter than your snow trend I concede]
While it looks like there is a negative correlation, this is simply due to climatic variability. If you look at the longer term trend, we see evidence of a correlation:
If we take recorded atmospheric co2 levels back to 1964 and combine them with atmospheric samples from Antarctic ice cores dating back to 1900, the correlation is extended even further: