Dear Nir Shaviv, I would be glad to receive your comment about the recent paper from Andrew C. Overholt et al 2009 ApJ 705 L101 - L103 doi: 10.1088 / 0004 - 637X / 705 / 2 / L101 TESTING THE LINK BETWEEN TERRESTRIAL CLIMATE CHANGE AND GALA Does it mean - the spiral arm mechanism you
suggest does nt fit - can some other mechanism explain your measurements and
hypothesis - does this have an
impact on the cosmic ray climate theory or not If we talk about the paradox of the faint young sun, imho its still an issue that any mechanism solving the problem of the major ice ages occuring each 140 million years in the last billion, does nt work for the first 3 billion years.