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Falling Caspian Sea Levels Drive Up Logistics Costs for Middle Corridor
Transportation · Marine Shipping · yonhap_finance · 2026-09-10
Climate-driven drops in Caspian Sea levels are forcing cargo ships to reduce loads, leading to higher shipping costs and operational challenges.
What Happened
Declining Caspian Water Levels: Climate change and global warming have caused the water level of the Caspian Sea, the world's largest inland body of water, to drop by more than 50 centimeters over the past five years. This decline is attributed to increased evaporation rates and reduced inflow from the Volga River due to upstream dam construction.
Impact on Logistics Efficiency: Low water levels have forced cargo vessels traversing the Caspian to operate at only 75-80% of their capacity. This reduction in load requires more frequent trips, which significantly increases fuel consumption, labor costs, and port usage fees, ultimately driving up overall logistics expenses.
Port Infrastructure Challenges: Maintaining navigable depths through dredging has become a costly necessity, with annual expenditures reaching millions of dollars. Experts warn that continued water level drops could threaten the structural integrity of port facilities and eventually necessitate major investments in port expansion.
Middle Corridor Bottlenecks: Since the outbreak of the war in Ukraine, the 'Middle Corridor' has become a vital trade route between China and Europe, with annual cargo volume surging to 4.5 million tons. However, environmental constraints are creating significant bottlenecks, highlighting the urgent need for infrastructure adaptation to sustain this critical supply chain.