Feedstock specific environmental risk levels related to biomass extraction for energy from boreal and temperate forests

► Synthesis of the scientific uncertainties regarding biomass for energy outtake. ► With specific focus on soil productivity, biodiversity, and carbon balance. ► Balanced determination of the risk levels associated with each aspect by feedstock. ► Comprehensive analysis of underlying attributes (indicators) determining risks. ► No feedstock free from environmental risks, though countermeasures available.