When a company commits to the ethical aspects its actions involve, it is essential that its impact on the climate and the environment be monitored, transparently communicated, and limited. Investing in sustainability can lead a company to better control and management of its performance as well as to the reduction of out-of-pocket costs and business risks. These efforts, when communicated properly, are a prerequisite for improving the attractiveness of a company to its stakeholders and can be an important part of its competitive edge. The global context confirms how the political world has understood the importance of Corporate Social Responsibility in the environmental field: throughout the world, policies in support of corporate transparency in sustainability are emerging. Chiara Mio (full professor in the Department of Management at the Ca' Foscari University of Venice) and Pietro Bertazzi (Senior Manager of the Global Reporting Initiative) will tackle the topic of an organization’s sustainability reports, focusing on the added value of transparent information. They will also present the latest developments on the international scene and the related cultural changes. Internationally recognized guidelines developed by the Global Reporting Initiative (GRI) with a focus on the fourth edition (G4, May 2013), will also be presented, which provide companies with a series of specific indicators for climate-altering emission reports.