Or are they on to something?:
http://thinkprogress.org/climate/2013/01/20/1474571/koch-funded-study-finds-25f-warming-of-land-since-1750-is-manmade-solar-forcing-does-not-appear-to-contribute/?mobile=nc
Has the BEST report been refuted?
I will check what Anthony Watts says about the Study.