Dr Canon Rachel Mash is a leading Anglican environmental theologian and climate justice advocate based in South Africa. As Environmental Coordinator of the Anglican Church of Southern Africa, she guides ecological initiatives across multiple countries in the region, encouraging churches to respond actively to the climate crisis. She is widely recognised for mobilising faith communities, particularly young people, through movements such as Green Anglicans and the global Season of Creation initiative.

Her work bridges theology, grassroots activism, and international advocacy, engaging with global platforms including interfaith environmental networks. She promotes practical ecological action alongside deep theological reflection on creation, justice, and sustainability. Through her leadership, churches are encouraged to become active participants in climate justice, biodiversity protection, and community resilience, affirming the sacred responsibility of faith communities in shaping a sustainable and life-giving future.