Lately I’ve been thinking about the 70 - 80% of a tree that isn’t accounted for in an EPD: When a tree is felled for lumber 20 to 30% makes it’s way into long lived products (furniture, buildings, etc.) with the remainder either waste, fuel, or paper.
Is it right that the timber EPD considers the emissions from the remainder to be out of scope? In my opinion because the tree is felled to meet lumber demand then the EPD needs to include the emissions of by-products, because I doubt that they are included elsewhere. This would presumably have a large impact on the assumed emissions intensity of structural timber, happy to be corrected though!