AGM grandstanding season is in bloom, with CBA the target of two nuisance campaigns.Environmental activists want an accounting of greenhouse gas emissions, financed by Commonwealth Bank.CBA funding was equal to 11 per cent of the bank's equity over the five years to 2013, the proponents said.Stephen Mayne, meanwhile, is running for the board on a "governance" platform.Both are ritual acts of a kind, each with a history of drawing scant shareholder support.