Agree the purpose and boundary
Confirm why the inventory is being prepared and what the intended audience needs. Identify the entities, facilities and reporting period, and document how changes in the group or its operations are handled.
Assign data owners by source
Identify activity data such as fuel use, purchased electricity, travel and relevant procurement records. For each source in scope, record the responsible function, collection frequency, units and evidence available.
Record the basis for estimates and calculations
Maintain a traceable record of the activity data, factors and conversion assumptions used. Where information is incomplete, document the gap, the basis for any estimate and who will review it.
Prepare for the next reporting cycle
Review the inventory for completeness and consistency and identify the data sources that need improvement. Assign actions to the teams that can improve measurement, source documentation or supplier information.
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Build a traceable greenhouse gas inventory and identify priorities for better data and emissions reduction.
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