Beyond the Building: Considering the Biogenic Carbon of Sites
Beyond the Building: Considering the Biogenic Carbon of Sites

As development projects strive to reach their carbon goals, it's necessary to incorporate the missing link - landscapes. This session dives into the complexity of biogenic carbon conventions, and what is often overlooked – the landscapes where biogenic products are sourced, and the projects' sites. This session explores the nuances within the sustainably certified silvicultural practices. Many of these forests are being harvested on a generational rotation that may take longer than the lifecycle of the building to regrow. FSC certification is becoming increasingly difficult to prove unless it also comes with a clear chain-of-custody certification that ties a product to a tract of land, especially in the tropics. At the same time, this session will review evidence that such certification regimes are improving forestry practices around the world, and the USFS and their European partners are at a moment of seminal change in how wood is moved, tracked, and reported. This session will also dive into the biogenic carbon not being accounted for in whole building LCAs- the biogenic carbon stored in the project site – in the soils, the plants, and the trees. It is estimated that 80% of global terrestrial ecosystem carbon stocks are found in soils – carbon that is difficult to quantify but may be key to future climate change. This session will explore how structurally complex ecosystems can perhaps store carbon in more resilient forms than their simpler, monocultural alternatives. This session will highlight the overlooked externality if we ignore the management practices at the sites from which wood is sourced, and missed opportunities if credit isn’t given for the living systems' carbon storage and sequestration capacity. This session makes the argument that we should value and credit ecosystem carbon and associated complexities at least equally to material carbon stored in products.