Business Green: Green business startups could from today access free legal, management and investment advice, following the launch of a new network of professional services firms that is offering to undertake pro-bono work for businesses working on low-carbon projects. The non-profit Leapfrog network is the brainchild of Steve McNab, head of environment at law firm Travers Smith, who said the aim of the initiative was to integrate the pro-bono work that many professional services firms already offer …