Geography
Why the Dead Sea Is Shrinking and Its Environmental Consequences
Quick fact
The Dead Sea's water level drops by roughly 1 meter per year, and more than 6,000 sinkholes have appeared along its shoreline since the 1970s.
Why this is interesting
The Dead Sea, one of the saltiest bodies of water on Earth, has lost about a third of its surface area in the last few decades. What is causing this dramatic shrinkage, and what are the hidden dangers?
Read the full explanation
Understanding Why the Dead Sea Is Shrinking and Its Environmental Consequences
Imagine a bathtub with the drain open and the tap barely dripping. That is what is happening to the Dead Sea. Its main water supply—the Jordan River and other streams—has been heavily redirected to farms and cities in Israel, Jordan, and Syria. At the same time, mineral extraction companies pump water from the sea to harvest potash and other salts, further lowering the water level. The Dead Sea sits in a hot desert climate, so evaporation is intense. With less water coming in and more being taken out, the sea shrinks year after year. As the water recedes, the surrounding land becomes unstable. Fresh groundwater seeps into the newly exposed salt layers, dissolving them and causing underground cavities that collapse into sinkholes. These sinkholes damage roads, farmland, and tourist infrastructure, and they pose a serious safety hazard.
A deeper explanation
The mechanism is a simple imbalance in the water budget: inflow (rain, rivers, and springs) minus outflow (evaporation and human extraction) equals a net loss. Human diversions of the Jordan River for agriculture and domestic use have reduced inflow by over 90%. The mineral extraction industry also directly removes water (approximately 300 million cubic meters per year) and pumps it into evaporation ponds, increasing the total evaporation surface area. The consequence is a rapid drop in the water level—about 1 meter per year. This drop exposes ancient salt deposits along the former shoreline. When fresh groundwater from the surrounding aquifers encounters these salt layers, it dissolves them, creating voids. The overlying soil and rock then collapse, forming sinkholes. Environmental consequences include the destruction of unique hypersaline ecosystems (only extremophile microbes and algae can live there), loss of the Dead Sea’s healing mud and mineral resources, and damage to tourism. The shrinking also threatens the stability of the region's groundwater and can cause land subsidence that affects infrastructure. This case illustrates how altering a natural water cycle leads to far-reaching environmental and economic problems.