The environment has traditionally been the domain of nonprofit organizations. For decades, nonprofit organizations have worked to reduce the negative impact of market-based activity on the environment. However, more recently nonprofits have started to adopt the methods and values of the market to achieve sustainability goals. One of the primary strategies that nonprofits use is to disclose, or pressure corporations to disclose, information about the environmental impact of their products and processes. These information disclosure strategies seek to help stakeholders make green purchases or invest in corporations that use green practices, thus incentivizing corporations to reduce their negative environmental impact. In this chapter, we review the benefits and the challenges encountered by nonprofits in their attempt to use information disclosure strategies.