That's still a significant empirical climate sensitivity to carbon dioxide. (realclimate.org)
With those caveats stated, it is absolutely true that the consensus «physics» is not supported by the actual empirical climate evidence over more recent years. (c3headlines.com)
In the paper, according to the abstract, Scafetta compares the performance of a recently proposed empirical climate model based on astronomical harmonics against all CMIP3 available general circulation climate models (GCM) used by the IPCC (2007) and finds that the climate appears to be resonating with, or is synchronized to, a set of natural harmonics that have been associated to the solar system planetary motion. (notrickszone.com)