The aim of the Special Issue is to bring to light the state of progress in knowledge of soils in cold-climate environments, with a focus both on present and past soil processes. In these areas, soils play a decisive role on the environmental dynamics (e.g permafrost, carbon and methane stock). Some of these areas have experienced very significant warming trends during the last decades. These changes may produce direct or indirect severe impacts on soil properties (e.g permafrost thawing, forest fires).

For this Special Issue we invite contributions from a wide range of disciplines and research topics inside the scope of Solid Earth. These topics include:

- Analysis of soil properties (micromorphology, mineralogy, nutrients); - Paleosoils and sediments: a source of palaeoenvironmental information; - Effects of fires in soil properties; - Soil temperatures in seasonal frost environments; - Active layer/permafrost dynamics.