This theme provides a forum to highlight the work of Indigenous people around the world who currently lead and contribute significantly to a range of initiatives in environmental education, activism, policy development, and research for the benefit of Indigenous and non-Indigenous communities alike. In this context, many non-Indigenous people are also attempting to engage respectfully with Indigenous peoples in relation to the sharing and use of traditional ecological knowledge (TEK), development of educational programs, activism and advocacy in response to contemporary environmental issues, and research. Conscious of such dynamics, this theme is further informed by theoretical concepts such as decolonization, reconciliation, cultural revitalization, and self-determination in Canada and beyond.