Présentations Colloques

The Guarani Aquifer System Governance has been a process developed by countries in response to the vertiginous water demand increasing occurred after the 1970s in the region. Since the 1990s, countries have built national and subnational institutions on environment approving new water laws to develop management strategies with focus on water resources. **With the support of the Project on Environmental Protection and Sustainable Development of the Guarani Aquifer System (2003-2009), Argentina, Brazil, Paraguay and Uruguay developed a Strategic Action Plan with specific groundwater instruments and institutional mechanisms tailored to the aquifer management. **In 2010, national presidents signed an Agreement on the Guarani Aquifer to be approved by national parliaments and implemented by the countries. **The countries are implementing some priorities defined in the Strategic Action Plan mainly on basic knowledge in recharging areas. In parallel regional, national and local stakeholders including in pilot areas are implementing actions and developing new plans to the aquifer sustainability. **To the implementation of the agreement, countries will have to review current regional, national, state provincial and local developments in a logical framework to put institutions moving forward in a coherent way. The presentation points out current achievements and main aspects to develop the Guarani Aquifer System Governance.**