The Climate Masters at Home program was modeled after Extension "master" classes with the aim of increasing individuals' energy and resource saving behaviors. This article explores the impact of the program on participants' behavior, attitudes, and knowledge over several years of implementation. Data sources include survey results from participants and control groups, as well as utility data for a subset of participants. The research shows participants making significant changes across a variety of behaviors, integrating climate change into their decision making process, and cutting their electricity use by 12 to 14%.