27.06.2018, Berlin, Berlin, Germany - Prof. Dr. Markus Rex, climatologist at the Alfred Wegener Institute and head of the MOSAIC expedition in the Arctic Ocean. 00R180627D029CAROEX.JPG [MODEL RELEASE: NO, PROPERTY RELEASE: NO (c) caro images / Ruffer, http://www.caro-images.com, [email protected] - In case of using the picture for any non-editorial purpose, please contact the agency - the picture is subject to royalty!]