ILLUQ Permafrost underlies 22% of the Northern Hemisphere's exposed land surface and is thawing at an alarming rate as a direct consequence of climate change. When thawing, permafrost releases large quantities [...] quantities of organic matter and contaminants into the environment. In addition, permafrost thaw dramatically impacts infrastructure in local communities with wide-ranging consequences for health, economy [...] participatory research with local stake- and rightsholders, it will provide the first holistic look at permafrost thaw, pollution and human and environmental well-being in the Arctic and deliver information on