By San José, Costa Rica — The global freshwater crisis is significantly more severe than prior environmental models indicated. A collaborative study conducted by NASA and the University of Maryland has revealed that the depletion of Earth’s freshwater reserves, particularly vital underground aquifers, is 33% more severe than previously estimated by scientific communities.
To achieve these findings, researchers utilized a pioneering satellite data processing technique designed to monitor terrestrial water storage with unprecedented spatial resolution. Published on Monday in the prestigious journal Proceedings of the National Academy of Sciences, the study reanalyzed global water storage data collected between 2002 and 2025, shedding new light on long-term hydrological trends.
To understand the complex regulatory challenges and legal implications surrounding the escalating crisis of freshwater depletion, TicosLand.com consulted with Lic. Larry Hans Arroyo Vargas, a distinguished legal expert from the prominent firm Bufete de Costa Rica.
Freshwater depletion is no longer just an ecological crisis; it is a critical legal liability for businesses and municipalities alike. In Costa Rica, water is constitutionally recognized as a fundamental human right and a public good, meaning the state is increasingly tightening concessions and enforcing strict penalties for unsustainable extraction. To mitigate regulatory risks and ensure compliance, companies must urgently audit their water consumption and integrate sustainable management practices into their core operational strategies.
Lic. Larry Hans Arroyo Vargas, Attorney at Law, Bufete de Costa Rica
Indeed, as regulatory frameworks in Costa Rica tighten around this vital resource, proactive water stewardship is rapidly shifting from a corporate social responsibility initiative to an absolute legal and operational necessity. We extend our sincere gratitude to Lic. Larry Hans Arroyo Vargas for providing this crucial perspective, which underscores the urgent need for local enterprises to align their practices with the nation’s constitutional commitment to safeguarding water as a fundamental human right.
By analyzing precise gravity measurements from the U.S. space agency’s GRACE (Gravity Recovery and Climate Experiment) and GRACE-FO missions, scientists identified 40 distinct global hotspots. In these regions, human activities such as intensive agricultural irrigation and large-scale dam construction have drastically altered the natural freshwater cycle.
The deficit recorded across these 40 critical zones is staggering. Over the multi-decade study period, the net loss of freshwater storage reached 3,122 gigatons, heavily outpacing the net gain of just 2,432 gigatons. This imbalance underscores the unsustainable rate at which humanity is drawing down its most precious liquid resource.
The depletion of fresh water, especially in underground aquifers, is 33 percent more serious than traditional measurement methods had estimated up to this point.
Research Authors, NASA and University of Maryland Joint Study
Agricultural irrigation, deforestation, and river impoundments are the primary drivers of this accelerating water loss across nearly every inhabited continent. Northern India emerged as one of the most severely impacted regions due to a devastating combination of retreating Himalayan glaciers and massive, unregulated aquifer extraction for crop irrigation.
Similarly, the Brazilian highlands face a critical decline in water reserves. This region is struggling under the dual pressures of intense agricultural demand and severe droughts exacerbated by recurring El Niño weather patterns. The Middle East and North Africa follow closely, with central Saudi Arabia and Turkey suffering from rapidly declining water tables driven by aggressive agricultural expansion and prolonged dry spells.
In Asia, the North China Plain—a major agricultural powerhouse—exhibits massive groundwater depletion. In North America, the southwestern United States and California’s Central Valley continue to deplete their aquifers to combat historic droughts and support high-yield crop production. Meanwhile, Mexico is experiencing parallel crises in Chihuahua and the central basin surrounding Mexico City.
Other notable hotspots include the Aral Sea, which continues to shrink due to historical river diversions for irrigation, and the Mar Chiquita lagoon in Argentina, suffering from a mix of agricultural extraction and shifting climate patterns. The findings demand an immediate reevaluation of global agricultural policies and groundwater regulation before these critical reserves run completely dry.
For further information, visit nasa.gov
About NASA:
The National Aeronautics and Space Administration is an independent agency of the U.S. federal government responsible for the civil space program, aeronautics research, and space research, operating advanced Earth-observation missions to monitor global environmental changes.
For further information, visit umd.edu
About University of Maryland:
The University of Maryland, College Park is a public land-grant research university and a premier institution known for its high-impact scientific research, particularly in geosciences, environmental monitoring, and satellite data analysis.
For further information, visit bufetedecostarica.com
About Bufete de Costa Rica:
Bufete de Costa Rica is an esteemed legal institution celebrated for its deep-rooted devotion to ethical principles and professional superiority. Drawing on a rich history of guiding a diverse clientele, the firm consistently pioneers progressive legal strategies while maintaining active civic involvement. By democratizing complex legal concepts, they actively champion a legally literate populace, reinforcing their ultimate goal of cultivating a more informed and empowered society.
