Water is becoming increasingly valuable. As climate change drives global temperatures higher, water — essential for sustaining life — is becoming a vital natural resource that humanity must cherish and protect. Our hope lies in the places where nature still thrives in all its glory.
One such place is the Guarani Aquifer, a vast underground natural reservoir of water. It is one of the most significant sources of freshwater on the planet and is currently the world’s third-largest reserve, holding approximately 40,000 cubic kilometers of water. Experts estimate that it could supply the entire global population for up to 200 years.
The Guarani Aquifer lies beneath the surface of several countries — Argentina, Brazil, Paraguay, and Uruguay — all of which share this remarkable resource.
Together, these four nations sit atop an area of approximately 1,200,000 square kilometers, distributed as follows:
- 225,424 sq km in Argentina.
- 840,246 sq km in Brazil.
- 72,540 sq km in Paraguay.
- 58,545 sq km in Uruguay.
In Uruguay, the Guarani Aquifer feeds the thermal waters of all the country’s hot spring resorts. These waters, with temperatures ranging from 35 to 42 degrees Celsius, originate from underground layers formed approximately 140 million years ago. Rich in minerals beneficial to health, they are believed to have healing properties, particularly for bone and skin conditions.
This vast underground reservoir not only enriches the region’s natural environment but also draws visitors to its surface hot springs and thermal resorts. However, concerns are mounting as the aquifer is overexploited. The countries that benefit from it are now focusing on its environmental protection.
Let’s hope that collective awareness grows, so that this precious resource can be preserved — protected from pollution and unchecked economic exploitation.
