A missing turbine that Moscow says has caused the Nord Stream 1 pipeline to pump less gas to Europe is stuck in transit in Germany because Russia has so far not given the go-ahead to transport it back, two people familiar with the matter said. The turbine, which usually operates at the Russian Portovaya compressor station, had been undergoing maintenance in Canada but was flown back to Cologne, Germany, on July 17 by logistics firm Challenge Group, one of the people said. It is currently unclear when the turbine can be returned, the people said, adding this could still take days or even weeks. The transport back to Germany happened after weeks of consultations between Berlin and the Canadian government over […]