News
"Voices of the GuaranÃ" Premieres in Paris: An Urgent Call for Water Preservation and International Cooperation

UNESCO proudly presents the world premiere of "Voices of the GuaranÃ", a documentary that amplifies the voices of those connected to one of the world’s largest freshwater reservoirs: the Guaranà Aquifer, shared by Argentina, Brazil, Paraguay, and Uruguay.
Directed by MatÃas Ponce and Linda Lilienfeld, the film will be screened at the in collaboration with the Global Network of Water Museums, at the historic Cinema MacMahon in Paris.
Through stunning visuals and powerful testimonies, the documentary explores the interconnectedness of water, land, and the communities that depend on this essential resource.
Indigenous leaders, scientists, and local experts share the challenges faced by the Guaranà Aquifer in the face of climate change, uncontrolled exploitation, and a lack of awareness about its vulnerability.
A Transboundary Treasure at Risk
The Guaranà Aquifer is a transboundary water resource that sustains millions of people, providing water for domestic use, agriculture, industry, and tourism across an area spanning over one million square kilometers.
Currently, the four countries—Argentina, Brazil, Paraguay, and Uruguay—alongside the Development Bank of Latin America (CAF) and UNESCO, have joined forces with funding from the Global Environment Facility (GEF) to implement the Medium-Sized Project (PPM): Implementation of the Guaranà Aquifer Strategic Action Program.
This initiative aims to ensure the long-term sustainable management of the aquifer and strengthen technical cooperation among the participating nations.
A Message of Urgency and Hope
The documentary highlights the crucial role of international cooperation in preserving this unique underground ecosystem, calling for sustainable protection efforts. As one of the film’s protagonists states:
"The aquifer was born without borders—its only boundary is how we choose to live."
At the premiere, UNESCO hydrology expert Koen Verbist will introduce the film, emphasizing key milestones such as the Year of Glacier Preservation, the 50th Anniversary of the International Hydrological Program (IHP), and six decades of scientific leadership at UNESCO.
Water as a Right, Cooperation as a Duty
The documentary underscores the urgent need to strengthen cross-border conservation strategies, engaging governments, Indigenous communities, scientists, and citizens in protecting this vital resource.
Ernesto Fernández Polcuch, Director of UNESCO’s Regional Office in Montevideo, highlighted the importance of scientific knowledge and international collaboration for the sustainable management of the aquifer:
"Water is a shared resource that transcends borders. Its preservation demands cooperation, commitment, and knowledge. This documentary is a powerful tool to raise awareness and promote evidence-based public policies through science and intercultural dialogue."
Miguel Doria, UNESCO’s Regional Hydrologist, emphasized the documentary’s significance in showcasing the Guaranà Aquifer’s essential role in regional development:
"The Guaranà Aquifer is a hidden giant that sustains millions of lives, yet its conservation remains a challenge. UNESCO works with governments and communities to ensure its protection, and this documentary invites us all to take responsibility for its care."
Paris marks the beginning of an international tour that will take "Voices of the GuaranÃ" to different countries, fostering global commitment and cooperation for water protection and sustainability, stated Ricardo Burg, International Coordinator of the Medium-Sized Project (PPM): Implementation of the Guaranà Aquifer Strategic Action Program.