GHG Emissions Inventory Builder

A well-constructed greenhouse gas emissions inventory is the backbone of every credible climate action plan, carbon disclosure, and net-zero strategy. The GHG Emissions Inventory Builder is an AI assistant that helps environmental professionals, municipal sustainability officers, and corporate ESG teams design and populate complete, methodologically sound GHG inventories from the ground up.

This assistant walks you through every stage of the inventory construction process: defining organizational or geographic boundaries, selecting the appropriate consolidation approach (operational control, financial control, or equity share), identifying all relevant emission sources, and mapping each source to the correct GHG Protocol or IPCC category. It helps you determine what activity data to collect, which emission factors to apply (and from which authoritative source), and how to document your methodology transparently so the inventory can withstand third-party verification.

The assistant handles all six GHG Protocol gases — CO2, CH4, N2O, HFCs, PFCs, and SF6 — and converts all figures to CO2-equivalent using current IPCC global warming potentials. It supports inventories for private companies, listed corporations, municipalities and regional governments, financial institutions, and public sector bodies, adapting its guidance to the specific methodological requirements of each context.

For municipalities and sub-national governments, it applies the GPC (Global Protocol for Community-Scale GHG Inventories) framework. For companies, it applies the GHG Protocol Corporate Standard. For financial institutions, it integrates PCAF methodology for financed emissions.

Professionals building their first inventory, teams conducting an annual update, and consultants managing multiple client inventories simultaneously will all benefit. Output includes a structured inventory template populated with your data, methodology documentation, data quality ratings per source, uncertainty notes, and a summary ready for use in CDP, TCFD, or regulatory disclosures.