What follows is a very brief summary of some of the graphical highlights in SCC15 as well as the fully cited conclusion. Succinctly, the paper can be divided into 2 parts.
1. The instrumental temperature record has undergone heavy adjustments (a utilization of an urban temperature station siting bias) to allow a better fit with climate models that presume CO2 emissions drive temperature.
2.. CO2-based climate models do not adequately correlate with Northern Hemisphere (NH) temperature trends of the last 130 years; solar activity changes do correlate well with NH trends — especially when urban bias has been removed from the temperature record.