O grande manancial do Cone Sul

The South Cone bears a groundwater source of continental extent called Guarani Aquifer, in which the volume of freshwater available is sufficient to supply the 15 million inhabitants of the region. The present paper gives a briefing on this reservoir, establishes the basis for the good use of the water resources, as well as proposes institutional means and arrangements at international level with a view to initiating a joint process to manage the source.