Germany’s largest and most important aviation hub, in Frankfurt, cancelled all departures as of midday Wednesday, as planes cannot be safely de-iced due to freezing rain, a spokesman for the airport’s operator Fraport said. Further landings will also be stopped after 3 pm (1400 GMT) as parking positions for aircraft at Frankfurt Airport are filling up. A Fraport spokeswoman said on Wednesday afternoon that further action would be taken depending on the weather conditions. Frankfurt Airport is among the busiest airports in Europe. Winter weather in western and southern Germany has caused travel…