Service-based social action projects can lead to deep learning experiences, improved community connections, and enhanced civic responsibility. When paired with information literacy (IL) skill development, they may also demonstrate the value of IL skills in a meaningful way. Librarians can help instructors overcome the challenges involved in offering such assignments by sharing model curriculum designs for service-based projects. They can help students find appropriate sources needed for devising solutions for real world problems through use of traditional library databases, but also by exploring alternative sources of information such as campus and community experts and organizations that address the problems. This poster session illustrates how a librarian assisted the instructor of an Introduction to Sustainability Class to design and carry out an assignment that required students to do research and inform the public of solutions they found through educational poster sessions, clothing swaps, and a Recycling and Composting 101 educational outreach presentation offered during the campus Earth Day celebration. Designed by the librarian and instructor who taught the class, it will discuss how the librarian made the connection with the instructor, the inspiration for the assignments, the assignments themselves, how the librarian assisted in the class, and student, instructor, librarian, and community reactions to the project. Those viewing the poster will come away with enough information to develop similar projects on their campuses.