Projects and achievements within the activity ''Wood Combustion and Oxidation of Wet Biomass'' in the triennium 1992-94 are reviewed. The projects include modelling of wood combustion and pyrolysis, characterisation of biomass fuels and ashes, emission comparisons, emission reduction techniques, measurement techniques, comparison of test standards, utilisation of contaminated wood waste, oxidation of wet biomass, condensing systems and co-generation and co-firing techniques.