text: Well, the word "only" is somewhat cute in comparison with the "mainstream" fashionable ideology. The IPCC said that they saw a 90% probability that "most" of the recent warming was man-made. The present paper would reduce this figure, 90%, to less than 50% because the Sun itself is responsible for 1/2 of the warming and not the whole 50% of the warming could have been caused by CO2 because there are other effects, too.