Arctic CO2 vs NH sea-ice area (detail)

showing daily, northern hemisphere, sea-ice area compared to atmospheric CO2 in the Arctic ( Alert station, Canada ).

CO2 is scaled by a factor of 0.444 to match the annual variation and has a fixed rate of change of 0.824 ppmv / year subtracted.

The long term correlation with this rate of change subtracted can be seen here:

data sources: