Reduction of carbon emissions with certified timber in construction systems

Abstract

Traditional construction, which relies on steel and concrete, is responsible for a significant share of global CO₂ emissions. In contrast, certified wood has emerged as a sustainable alternative, since its production and use leave a much smaller carbon footprint. This material, sourced through responsible forest management practices (endorsed by certifications such as FSC or PEFC), not only captures carbon during the tree’s growth but also requires less energy to process compared to other structural materials. Its integration into construction systems supports a circular economy, as wood is renewable, recyclable, and biodegradable. Research has shown that wooden structures can store tons of CO₂, helping to mitigate environmental impact. Innovative techniques such as laminated timber and CLT (Cross-Laminated Timber) have improved both efficiency and strength, making it possible to construct medium- and high-rise buildings with low emissions. However, challenges persist, including restrictive regulations and limited technical knowledge. Even so, the potential of wood to lower carbon emissions in the construction industry is undeniable. To promote its widespread use, public policies, tax incentives, and professional training are essential measures that would align the sector with global climate goals.