What’s would it mean to make sustainability “irresistible”? Saatchi & Saatchi S CEO Annie Longsworth says it means to make businesses, shareholders, investors and so on talk about sustainability naturally. At the Sustainable Brands 2012 conference I had a chance to sit down with Annie for a few minutes to talk about what’s new at the company as well as to get to the bottom of this “irresistible” idea…