Study reveals 40% of Swiss wood directly burned instead of recycled

A groundbreaking study by the Swiss Federal Laboratories for Materials Science and Technology (Empa) has revealed concerning statistics about wood utilization in Switzerland. The research shows that approximately 40% of the 5-7 million cubic metres of wood harvested annually is directly burned for energy purposes. Even more alarming is the extremely low recycling rate of just 8% for wood, which stands in stark contrast to other materials like paper, which achieves a 70% recycling rate.

The study emphasizes the crucial role of wood in achieving climate neutrality. As a renewable resource, wood naturally captures CO2 during growth and can serve as a long-term carbon sink when properly utilized. However, the current practice of directly burning 40% of harvested wood significantly undermines its potential environmental benefits. Researchers stress that wood should remain in use as a material for as long as possible to maximize its CO2 storage capacity and contribute effectively to climate protection goals.

Experts advocate for a 'cascading use' approach to wood utilization. This strategy prioritizes processing harvested trees into high-quality products such as construction beams and boards, maximizing their lifespan through multiple cycles of use. Only when wood can no longer serve as a material should it be considered for energy production. This approach would significantly enhance the sustainability of wood usage while maintaining its role in Switzerland's renewable energy mix.

The findings from this research have significant implications for Switzerland's environmental policies and net-zero targets. To achieve better sustainability in wood usage, there needs to be a fundamental shift in how wood resources are managed and utilized. This may require new regulations, improved recycling infrastructure, and greater awareness among both industry stakeholders and the public about the importance of sustainable wood use practices.