In June the danish climate scientist Steffen Olsen shared a photo from his expedition in northern Greenland online. It showed his sled dogs running ankle-deep through freshly melted water on an ice sheet. The picture went viral and served as example for the acceleration of climate change in the arctic, a region that suffers more than others from rising global temperatures. A collapse of the Greenland ice sheet could lead to a massive rise in global sea levels. Warmer sea water in the region also leads to accelerated thawing and erosion of costal glaciers which start melting from the bottom. In July of 2019 a team of international oceanographers left the harbor of St. John’s in Canada to examine how much sea water leaves the fjords in Greenland and enters into the East Greenland Current (EGC). The EGC is part of the global thermohaline circulation, a change in its constitution could have severe effects on the global water circulation including the Gulf Stream that brings a moderate climate to Europe. This reportage gives an insight into the live on board of RV Maria S. Merian and the research conducted on board while travelling from Canada to Svalbard.