Standard corporate carbon accounting tracks paper numbers rather than physical drops in greenhouse gas emissions. People assume that when a corporation lowers its reported Scope 3 supply chain footprint, global smokestack emissions shrink by that exact amount. Instead, company accounting boundaries only attribute responsibility on paper, while real emissions depend on how the surrounding market, policies, and factories respond to the company’s move.
A business can remove a carbon-heavy supplier from its ledgers to show a lower corporate inventory on paper. Just as selling a gas car to a neighbor leaves that vehicle burning fuel on the road, a dropped supplier keeps operating if other customers purchase its output. The new framework maps which market outcomes can physically happen and weights each path with auditable evidence. It then calculates upper and lower bounds on actual emissions consequences instead of assuming a single paper figure.
The authors built a calculation layer that attaches evidence constraints to conventional Scope 3 inventory workflows. They tested the model across four scenarios, including supplier exits, energy attribute purchases, logistics efficiency rebound, and material substitutions. The tests revealed that identical inventory reductions can yield completely different consequence estimates depending on market reactions.
Enterprises can now maintain familiar Scope 3 inventory reporting while providing auditable bounds on their true physical impact. Under the proposed enterprise rule, companies must explicitly present the underlying actions, reachable outcomes, and physical consequence models before claiming any climate benefit.