Annual Increase in CO2
Slide 7 in this series.
The Mauna Loa measurement of CO2 is thought to be good measure. It is taken at the top of a volcano, and it is said that any emissions from the volcano are calibrated out of the measurement you see below.
The CO2 concentration in ppmv is close to the same across the globe. It is thought to be a well-mixed IRG, and the satellite measurements show that the concentration is close to constant across the entire planet.
However there is no means to verify if this increased CO2 is either/or natural or man-made. AGW assumes that it is all man-made.
Total Solar irradiance is next and gives us an idea as to how much this energy varies.
These links are the topics for this section.
Modelling Temp Natural Factors
Earth and the Science of Radiation
Milankovith Overlapping Cycles
