Around 14% of bioenergy used in Europe is of unknown origin, according to an EU report, which highlights the need to improve the tracing of wood burned for electricity production. The report by the European Commission’s in-house research centre also uncovered a 20% gap between the reported use of biomass in sectors like furniture or construction and other reported uses. This gap “can be almost entirely attributed to energy use,” said the EU’s Joint Research Centre, based in Ispra, Italy. The report, published on 26 January, highlights both “win-win” forest management practices but also “lose-lose” situations where bioenergy exacerbates climate change and damages forest ecosystems.