[Start here] Carbon Smart Materials Palette (CLF): Approachable, material-by-material guide to lower-carbon choices for concrete, steel, wood, and more. carbonleadershipforum.org
Calculating the Embodied Carbon of Different Structural Systems (WoodWorks): Compares system-level carbon and walks through estimator/calculator tools for early comparisons. woodworks.org
One Click LCA Carbon Designer 3D / Planetary (free tier): Estimates embodied carbon from building size and primary structural material; fast schematic comparisons. oneclicklca.com
WoodWorks Carbon Estimator: Quick wood-mass-based estimate of stored and avoided carbon for early mass timber consideration. woodworks.org
SE 2050 Design Guidance: Strategy-level reduction guidance to inform system selection. se2050.org