Business Spectator: The provocative research and articles from Paul Gilding and Phil Preston published on Climate Spectator in the past two weeks have generated considerable comment — not just on this website, but in the mainstream investment community. So much so that Elaine Prior and Craig Sainsbury, two analysts from Citi, the world`s largest investment bank, have responded to the debate about whether — and how — carbon constraints and risks should be considered in valuations by analysing the …