The Geohazards Research Unit was established within the Institute of Geology of the Adam Mickiewicz University, Poznań in January 2020, and brings together an international and interdisciplinary group of scientists. We use a variety of scientific methods, in particular: sedimentological, geochemical (e.g. ²¹⁰Pb and ¹³⁷Cs dating using gamma spectrometers and analyses on a multi-sensor XRF scanner), mineralogical, geomorphological, micropaleontological, and paleogenomic (ancient sedimentary DNA). Most of our work concerns polar and marine areas. We explore fjords and coasts in the far north (Greenland, Spitsbergen) and the south (Antarctica, South Georgia). Our key research areas also include the coasts and continental shelves of Brazil, Vietnam, Thailand, Japan, Portugal, and Poland. We conduct much of our research documenting the effects of the largest natural disasters, for example, the 2004 Indian Ocean tsunami, the 2011 Tohoku-oki earthquake and tsunami, the 2018 Palu tsunami, or the floods on the Warta and Vistula Rivers in 2010.