How Green Walk OS Measures Impact

Materials submitted through Green Walk activities are checked and classified by an authorised Green Walk volunteer/operator and weighed before being recorded.

The measured material weight in kilograms is recorded as the primary operational environmental data.

Green Walk OS calculates an estimated climate indicator from the recorded weight:

Verified Material Weight (kg) × Applicable Emission Factor (kg CO₂e/kg) = Estimated CO₂e Avoided (kg CO₂e)

The current Green Walk OS MVP emission-factor configuration references EPA WARM V16. Estimated CO₂e values are environmental estimates generated from recorded material weights and configured emission factors. They are not carbon credits, certified emission reductions or independently verified carbon claims. A zero factor for Food/Organic, Other/Residual or Hazardous/Special waste does not mean the material has no environmental impact — it means Green Walk OS does not currently calculate an estimated avoided-CO₂e value for that category.

Material moves through four recorded stages, each confirmed by a different party:

• Verified — checked, sorted and weighed by an authorised volunteer at a community station.
• Collected — grouped into a recovery batch and released for transport.
• Received — confirmed as physically received by the resource recovery partner.
• Recovered — confirmed by the partner as processed into the recovery stream.

Estimated CO₂e avoided is reported from verified weight. Later stages record chain of custody and do not change the estimate.

Green Points are a Green Walk community participation and reward mechanism. They are not carbon credits, financial assets, verified emission reductions or tradable environmental instruments. Lifetime Green Points record everything a participant has earned and determine their Green Level; the balance is lifetime points minus rewards redeemed.