Database and source codes used to investigate the impact of permafrost thaw on industrial legacies in the Arctic: The file Industrial_Sites.zip includes geospatial data (point shape file) on the location of industrial sites above 55°N. The data synergizes data from OpenStreetMap (OSM) and the Nordregio Atlas of population, society and economy in the Arctic from 2019. The file PanArctic_Simulations.zip includes the source code of the CryoGrid permafrost model (Julia Language v. 0.6.4) and a start script with all parameters and forcing data (JSON) required to run the model for industrial sites located in the Arctic permafrost region. The file Contaminated_Sites_Program_Alaska.zip includes geospatial data extracted from the database of the Contaminated Sites Program in Alaska. The data set contains location, associated industrial sector, first date of registration, and associated chemical substances. The file Point_Process_Modeling.zip contains geospatial data of industrial sites and contaminated sites in Alaska and an R script used to fit a point process model to the data. The results deliver intensity maps of contaminated sites in the Arctic permafrost region. The file Industrial_Contaminated_Sites_Alaska.zip contains a data subset of industrial sites and contaminated sites in Alaska and scripts used to analyze the occurrences of contamination and industrial activity in the permafrost regions of Alaska. The file Industrial_Contaminated_Sites_Arctic.zip contains data and scripts to analyze permafrost degradation at industrial sites and contaminated sites in the Arctic following the simulations performed with PanArctic_Simulations.zip and the site locations contained in Industrial_Sites.zip and the intensity map derived by Point_Process_Modelling.zip. Please note that paths pointing to the datasets used in the scripts have to be changed accordingly.