The GHG Protocol splits an organisation's emissions into three "scopes" so they can be measured consistently and audited. This lab renders those scopes as a live 3D ledger tower above a model apiary: Scope 1 is fuel burned directly by the operation's own trucks and equipment, Scope 2 is the electricity it buys from the grid, and Scope 3 is everything else in the value chain — sugar feed, equipment manufacture, packaging and distribution — that happens because the business exists, but outside its direct control.
Under the GHG Protocol Corporate Standard, Scope 3 is optional to disclose but is often the largest category for agricultural businesses — for a beekeeping operation, upstream inputs and distribution can outweigh the fuel and electricity it uses directly, which is exactly why "carbon accounting" is as much about drawing an honest boundary as it is about arithmetic.
A live 3D GHG ledger sits above a model apiary, splitting a beekeeping operation's emissions into Scope 1 direct fuel, Scope 2 purchased electricity and Scope 3 value-chain inputs — so the abstract idea of a "reporting boundary" becomes something you can literally raise or lower.
Each scope gets its own bar driven by simple, auditable per-hive or per-unit emission factors. Changing the reporting boundary greys out and drops bars outside scope, showing exactly how much of the real footprint a narrow Scope 1+2 report leaves out.
Set hive count, fleet diesel use and purchased electricity, then push the renewable electricity share up to watch Scope 2 shrink and the solar panels brighten. Switch the reporting boundary to see Scope 3 upstream and full value-chain bars enter — or leave — the ledger.
Under the GHG Protocol, Scope 3 disclosure is voluntary for most organisations, yet for agricultural businesses it's frequently the largest category — a beekeeping operation that only reports Scope 1+2 can be reporting well under half its true footprint.