I'm afraid I don't have a peer-reviewed source handy. I don't indulge in such Rapture cult classics as contrails, HAARP weather control and flatardation, so odds are wherever I came across the CME stuff probably merited at least the benefit of a doubt. Wanna say it came up as part of an interview with Sir Roger Penrose, but he's more a pure math/physics guy, so I could be off base.