Environmental Soil Science Unit is part of the Department of Agricultural Sciences at the faculty of Agriculture and Forestry, University of Helsinki. We assess the challenges of climate change, sustainable and efficient crop production, environmental remediation, resource sufficiency, elemental cycles and environmental risk assessment with high quality interdisciplinary research. Soil is the interface of Earth’s hydrosphere, atmosphere, lithosphere and biosphere. We focus on the chemical, physical, microbiological and biological processes in soil that control the fluxes and fate of elements, chemical compounds, water & energy. On the basis of scientific knowledge on environmental soil science, we work to find solutions from global to local scales.