CO2 Signature?

There are still quite a few people that believe CO2 has not impact what so ever on climate.  It does, but since CO2 is a bit player you have to really hunt of a hint of a CO2 signature in all of the noise.  CO2 also has a greater impact is the dryer portion of the atmosphere and over land mass since that is a drier portion of the surface.  To dig out a "signature" you can difference the satellite temperature data for the land and ocean.  That removes a bit of the noise that just a part of climate.  Then using a satelite era baseline with the least noise, 2000 to 2012 for example for both the land-sea difference and Mauna Loa CO2 you can compare the slope.  0.8 C should be the CO2 impact based on the Kimoto energy balance method so here is the comparison.

Is that definitive proof?  There is no such thing, but the expected trend is in the expected data using a reasonable, at least to me, method.