Practitioner-focused guides on emission factor databases, selection methodology, and annual updates. Independent, no-nonsense, written from real reporting experience.
The foundation guide. The formula, the three scopes, why factors differ by region and year, where to find them — everything you need before reading anything else on this site.
Read articleAn independent comparison of the six major emission factor databases. Covers scope, cost, geography, update frequency, and when to use each — with a practical decision framework for GHG practitioners.
Read articleA practitioner's breakdown of the major emission factor updates for the 2025 reporting cycle — NGA hydrogen factors, DEFRA's largest reductions in years, and EPA's new T&D loss percentages.
Read articleStep-by-step guidance on selecting the right emission factor for any activity — matching reporting frameworks, location-based vs market-based electricity, the NGA vs IPCC decision, and unit conversion traps to avoid.
Read articleA practitioner's guide to the emission factors that matter for Australian mining — diesel and explosives (Scope 1), state-by-state electricity (Scope 2), and the Scope 3 categories the sector routinely misses.
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