Berlin (AP) - Climate activist Greta Thunberg also used a first-class seat on her way back to her Swedish homeland, according to Deutsche Bahn. Accordingly, Thunberg traveled from Frankfurt to Hamburg - between Kassel and Hamburg in a first class seat, as the train announced. Thunberg had posted a photo on Twitter that shows her with a lot of luggage on the floor of an ICE. She was on the move «in crowded trains through Germany».