In Guarani culture, “óga” means home, a concept that extends beyond the nuclear family to encompass a broader sense of kinship and community.
Rooted in this indigenous word, OGA embodies our effort to restore connection with nature, with one another, and with the living systems that sustain us. We see this reconnection as part of decolonization work: healing the separation between people and planet, and re-grounding collective action in care, reciprocity, and belonging.
OGA · Mission
At Opportunities for Grassroots Action (OGA), our logo — a small plant emerging from the soil — symbolizes growth, resilience, and the deep roots of collective action. The seven leaves reflect our core principles: living values that guide how we work, connect, and nurture transformation from the ground up.
Our mission is simple: to help grassroots efforts bloom. Through visibility, capacity-building, and genuine partnership, we aim to cultivate a global ecosystem where grassroots changemakers can grow together, rooted in purpose, and thriving in collective action.
OGA WEB
Our Stories 🌱
Our blog articles are available in English, Spanish, and Portuguese.
When the Body is Territory, the Border Disappears
Territory is not a line; it is a relationship. When the body is territory, it ceases to be a boundary and becomes a living bond. To decolonize is to unlearn divisions and remember that we never exist alone.
Cleidiane Tremembé: mathematics, territory and other ways of learning the world
Cleidiane Tremembé teaches mathematics through the lens of the Tremembé people’s territory, ancestry, and communal life, challenging the divide between traditional wisdom and scientific knowledge. Her practice reveals education as continuity, resistance, and transformation.
Abbas Al-Faouri: From Displacement to Self-Driven Science, Research, and Astronomical Inquiry
Abbas Al-Faouri shares, in his own unaltered words, a journey from forced displacement to self-driven science, mathematics, and experimental research. From building microscopes with recycled materials to student innovation and astrophysics research, his story shows how curiosity, discipline, and access to knowledge can transcend structural barriers and expand what is possible.
Lélia Gonzalez: The Revolution of Thought and Anti-Colonial Healing
Lélia Gonzalez (1935-1994) was the voice that taught us to see colonialism from the inside out. An anthropologist, teacher, and fundamental thinker, she created Amefricanidade (Amefricanity) to unmask the farce of racial democracy and unite black and indigenous struggles. Discover how her thinking is the decolonial key to our collective healing.
