Climate change is lifting South Africa out of the ocean
05-15-2025

Climate change is lifting South Africa out of the ocean

Sudden shifts in South Africa’s ground level are causing surprise. Observers point out that water-stressed regions in the country have been moving upward more quickly than people thought possible.

These developments were initially linked to deep geologic changes. Yet emerging insights suggest that water loss may be the bigger factor behind the rise. This work comes from the efforts of scientist Johannes Seiler from the University of Bonn.

New rise in land linked to more than geology

Experts have long watched this part of the continent. Some looked deep below the surface for answers, proposing that magma-related processes or mantle flow might be at play.

Others turned their attention to climate patterns. The focus shifted toward rainfall shortages and the possible effects of water movements on Earth’s crust.

Water loss is key reason for ground uplift

A geodesist is someone who specializes in measuring Earth’s size, shape, and gravitational field. One such researcher pointed to lacking rainfall and lower moisture in the ground as contributors to changing land heights.

“This data showed an average rise of 6 millimeters between 2012 and 2020. We believe that it is also possible that a loss of groundwater and surface water is responsible for the land uplift,” explained Dr. Makan Karegar, a geodesist from the Institute of Geodesy and Geoinformation, University of Bonn.

He and his team tracked local ground motion with satellite tools, then compared it with water usage data.

Drying soils and water loss lead to land rise

Reduced water reserves can make soil compact less. When large amounts of groundwater – water stored beneath the surface – drop, Earth’s crust can flex in response.

Communities in water-stressed areas have noticed shifts in wells and local water tables. Such hints of dryness are not always obvious, but their link to the uplifting land has gained momentum.

Connections to changing weather

South Africa has experienced periods of diminished rainfall for decades. Researchers studying these trends recognize a blend of natural cycles and rising challenges linked to climate shifts.

Some scientists highlight the need to handle water sources more carefully. They emphasize that measuring how much water remains in the ground can reveal how quickly land may change height over time.

Land rise may quietly impact homes

Any drop in water availability carries concerns. Farms, factories, and city dwellers all rely on stable supplies, and there is tension when wells sink too low.

Land motion might not be large enough to see. But it could still affect pipelines, infrastructure, and local planning if allowed to continue without proper monitoring.

South Africa’s land rise signals deeper water crisis

This isn’t just about dry soil or thirsty cities. The GPS data reveal that environmental stress is changing the ground beneath people’s feet in real time.

By connecting subtle land movements to water loss, scientists are uncovering a new way to track the health of an entire ecosystem. It offers a broader lens than rainfall totals or river levels alone.

Rising land warns of future water demand

Crowded regions may face rising demand for water in coming years. Observers say that fresh strategies are needed to guard water resources.

Policymakers and environmental agencies often rely on rainfall forecasts and dam levels to set policies. Tracking crustal movements may soon join that toolkit, offering an extra line of defense.

Small land rises help track growing water problems

Communities can adapt if they know when water shortages loom. Although it sounds daunting, small changes in land height can help reveal hidden patterns of water decline.

Scientists stress the importance of forward-thinking methods. Reliable station networks and continuous monitoring will be key.

Awareness and action

Some provinces show steeper changes than others. In these spots, dryness seems more acute, and the risk of water scarcity can intensify.

Decision-makers, farmers, and households might all need to pitch in. Cutting daily consumption and safeguarding wells are among common suggestions, though each community varies in approach.

Moving land now seen as early sign of water shortage

In the past, dryness often went unnoticed until taps began to run dry. Now, land movement offers a silent alarm, reminding regions that every drop matters.

Precision data can confirm whether water shortages are creeping in. It also helps watchers target solutions before matters spiral.

Findings reveal a strong link between dryness and terrain changes. While the entire story may not rest on water, ignoring that angle could be costly.

Better insight into water flows promises to fill a knowledge gap. Rising ground might be the nudge we need to handle water with more caution.

The study is published in the Journal of Geophysical Research: Solid Earth.

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