Sea ice physicist and expedition participant Stefanie Arndt, atmospheric physicist and leader of the MOSAiC expedition Markus Rex and Germany's Minister for Education and Research Anja Karliczek pose with a placard showing a picture of the German icebreaker and research vessel "Polarstern" and a text reading 'Global Temperature rise' before a news conference presenting the initial results of the MOSAiC expedition, the largest scientific undertaking in the polar region to date, in Berlin, Germany June 15, 2021. John MacDougall/Pool via REUTERS