Committed to defending the rights of Indigenous Peoples and the environment, Val Munduruku took part in COP25 in Madrid, where she carried the voice of Indigenous youth on climate issues and threats to Indigenous territories. She actively campaigns against illegal gold mining and deforestation in the Upper Tapajós region, denouncing the socio-environmental impacts of these activities on local communities.

Val Munduruku is also a member of Engajamundo, a youth network committed to climate action, and uses social media to raise public awareness of Indigenous struggles. She appears in the film Amazonia, the Heart of Mother Earth, where she testifies to her commitment to preserving the Amazon and the rights of Indigenous Peoples.