Europe’s supply of fuels such as coal and petroleum products faces further disruptions in the coming days as the water levels on the Rhine River—a key waterway for barge transportation – are expected to sink below the level of navigability. The Rhine River, which runs northwest from Switzerland through Germany, France, and the Netherlands into the North Sea, is a major petroleum product transportation corridor in Europe. Due to heat waves and drought this summer in Europe, the levels on the river are low and have now become…