Australian: THE ruins of global financial capitalism on display at the World Economic Forum included . . . the dashing of hopes for a deal to save the planet from global warming. Just as the world’s top bankers will have to play by different rules after the crisis, global climate action requires a political rethink. “The real difficulty is that for some reason, we have trouble grappling with what are really serious trade-offs to be made with economic impacts in the short term,” Canadian Prime …