Downstream emissions
Downstream emissions are indirect greenhouse gas emissions from value-chain activities occurring after an organization sells or distributes its products or services. Applying Downstream emissions requires a stated emissions scope, inventory boundary, baseline, energy system, and assessment horizon. Those choices determine how Downstream emissions can be compared or acted upon.
In simple terms
In practical use, Downstream emissions are indirect greenhouse gas emissions from value-chain activities occurring after an organization sells or distributes its products or services. For Downstream emissions, assessment should identify the driver, exposure, affected people or assets, likelihood, consequence, and available response within a declared emissions scope, inventory boundary, baseline, energy system, and assessment horizon. Downstream emissions connects with Scope 3 emissions and Nitrous oxide; each can affect its application without sharing its definition. The candidate link between Downstream emissions and Cradle-to-gate carbon footprint remains a separate expansion question supported here by Greenhouse Gas Protocol.
Why it matters
Downstream emissions matters because decisions about it determine which emissions enter an inventory, which transition option appears credible, and how progress is compared over time. A defensible use of Downstream emissions therefore exposes its boundary, method, evidence, responsible actor, and uncertainty before a conclusion is accepted. That discipline keeps Scope 3 emissions and Nitrous oxide from being treated as proof of Downstream emissions when their criteria, scope, or results differ.
Example
An emissions and energy team evaluates Downstream emissions for a defined decision and records the relevant emissions scope, inventory boundary, baseline, energy system, and assessment horizon. For Downstream emissions, the team uses cited material from Greenhouse Gas Protocol to identify the exposure, affected people or assets, and available response, documenting the period, data, assumptions, and comparison with Scope 3 emissions. It treats Nitrous oxide and Cradle-to-gate carbon footprint as separate questions rather than proxies for Downstream emissions.
How it differs
Scope 3 emissions
Downstream emissions is a issue or risk; Scope 3 emissions has a different function. Evidence for Scope 3 emissions does not establish Downstream emissions unless both sets of applicable criteria are met.