A major political and environmental dispute is coming to a boil in the run-up to COP26 in Scotland this November, as the EU and the forestry industry push forest biomass (turning trees into wood pellets and burning them to make electricity), claiming the science shows biomass is sustainable and produces zero emissions.

Forest advocates and many scientists sit squarely on the other side of the argument, providing evidence that biomass burning is destructive to forests and biodiversity, is dirtier than coal, and destabilizing for the climate. Moreover, they say, the carbon neutrality claim is an accounting error that will greatly increase carbon emissions.
These views collided in July when the European Commission called for only minor revisions to its legally binding Renewable Energy Directive (REDII) in regard to biomass policy as part of the EU Green Deal. Critics say the plan, if approved by the EU Parliament in 2022, will fail to protect global forests from the wood pellet industry.
Here, Mongabay offers a review of the science on both sides of the biomass debate, summarizing key studies and reports, and providing links to primary sources for enhanced insight into these complex issues. The EU decision to include wood pellets as part of its clean energy mix could help shape global biomass policy at COP26.