In recent years, various climate change education efforts have been launched, including federally (National Oceanic and Atmospheric Administration, National Aeronautics and Space Administration, National Science Foundation, etc.) and privately funded projects. In addition, climate literacy and energy literacy frameworks have been developed and deployed, and both have been reviewed and endorsed by the U.S. Global Change Research Program. This paper describes a community-based effort to promote climate and energy literacy: the CLEAN Network (originally the Climate Literacy Network). We describe results from a member survey about the importance of the network to the members' professional lives and review the development and position of the network within the larger community of climate and energy literacy stakeholders. The CLEAN Network was first formed in 2008 to support climate literacy efforts, largely through voluntary efforts. It serves as a champion and rudimentary and unfunded backbone support organization, enabling first steps toward establishing the elements necessary for successful collective impact in achieving climate literacy. Among the elements that have been described to be essential for a collective impact, the CLEAN Network most effectively provides continuous communication for the broad community of climate literacy stakeholders. The network enables its professionally diverse members to learn of one another's needs and to begin identifying mutually reinforcing activities that will address the common agenda and shared system of measures (two other key elements of collective impact) once they are established. The CLEAN Network serves as a small champion group that continues to seek input from the larger climate literacy stakeholder community on how a backbone support organization might support and extend their efforts. The next steps in a collective impact approach to climate and energy literacy include defining and forming a backbone support organization to facilitate the development of a shared agenda and a shared system of measures, which has the support of all stakeholders, that is sufficiently funded and can help mobilize funding to scale what works in climate and energy literacy. Such an organization would have collective impact that is commensurate to the challenges and opportunities climate change present to the nation.