Brazil beyond the border: public goods and public policy as transnational act

The public goods are protected by local interests, such goods are public monopolies self-regulated by domestic policies. From this point of view, we aim the necessity of analyze as Brazilian environmental laws regard borderer countries that share transnational public goods with Brazil. Thereby, the focus is about the Aquifero Guarani the largest underground freshwater reservoir on the planet that covers parts of Uruguay, Argentina, Paraguay and, mainly, Brazil. We article ask how limit externalities in transnational goods and as create new public spaces where to global policies ocurr.