Climate change has hit the Pacific Island nation of Kiribati hard over the past decade, with unreliable weather patterns, drought, flooding and king tides all affecting the homes, health and livelihoods of residents. As the effects of climate change increase, women are rising up as advocates, fighting for action on mitigation and adaptation strategies locally and internationally. Through in-depth interviews with five I-Kiribati women, this study explores the strategies and impacts of their climate change advocacy. It addresses the questions: ‘How are I-Kiribati women advocating for climate action?’, and ‘What impact do the I-Kiribati women mobilized for climate action hope their voices and stories will have locally and transnationally?’. The qualitative study draws on feminist theory and discourses on vulnerability and women in development, with a view to breaking away from the rhetoric of women as ‘victims’ and focusing on women’s agency in climate change advocacy. It explores the nuances of gender and climate change in Kiribati and the effects of shifting gender roles in local communities. Findings highlight the role of narratives and storytelling in Kiribati and internationally to translate science-based arguments into easily understandable messages for the public.