Biogenic Carbon Accounting in WBLCA Tools

Part 3 in a series on biogenic carbon accounting for wood products, exploring the nuances of how different whole building life cycle assessment (WBLCA) tools handle biogenic carbon accounting. Covers detailed comparison of three major WBLCA tools: Athena Impact Estimator, Tally, and OneClick LCA. Addresses how each tool includes or excludes biogenic carbon flows, end-of-life scenario assumptions, and permanent carbon storage calculations. Provides specific percentages and methodologies for biogenic carbon accounting in each tool, helping designers understand differences in reporting methodologies and select appropriate tools that align with ISO 21930 standards.