lsvalgaard says: February 20, 2013 at 2:00 pm There is a glaring problem with the cosmic ray data in the 1890s which is unresolved, but which is being investigated at an ongoing Workshop: see e.g. Figure 2 of <a href="http://www.leif.org/research/Svalgaard_ISSI_Proposal_Base.pdf">http://www.leif.org/research/Svalgaard_ISSI_Proposal_Base.pdf</a> Eric H. says: February 20, 2013 at 2:05 pm ???Rud Istvan says: