or not this development has already begun is something we’re investigating right now, on various Polarstern expeditions to the Weddell Sea and with the sensor chains that we’ve placed in and below the ice [...] drilling we needed 13 tonnes of equipment, which had to be transported to the shelf on board the Polarstern and other ships, bit by bit, in the course of several consecutive summers. Plus there was all the [...] knew nothing about.” Parallel to the drilling on the ice shelf on board the research icebreaker Polarstern, AWI oceanographers Dr Michael Schröder and Svenja Ryan monitored the currents in the eastern Weddell