A case-study methodology was used to explore the process of change as experienced by 3 suburban families in an attempt to incorporate climate change mitigation behavior into their day to day life. Cross-case analysis of the findings revealed the emergence of three major conceptual themes associated with behavior adoption: collectively applied competences such as self-efficacy and perseverance; shared ecological values among family members; and collaborative family dynamics. Based on these findings, the authors conclude by outlining the lessons learned in terms of their potential for policy makers and possible educational programs for families looking to adopt a more sustainable lifestyle.