When winter grips Central Europe, the Danube River can turn from a trade lifeline to a frozen barrier in days. The waterway carries roughly 95 million tonnes of cargo each year, but during severe cold spells, ice can force navigation restrictions that slow commercial traffic. As Arctic air moves in, countries along this vital corridor coordinate to keep commerce flowing. CGTN correspondent, Pablo Gutierrez, reports from Budapest. #hungary #danube #icebreaker