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Emissions and Climate
1 tool in the Environmental area.
GHG Emissions Inventory
A scope 1, scope 2 and selected scope 3 greenhouse gas inventory by the activity data times emission factor method of the EPA Center for Corporate Climate Leadership guidance. Rows of stationary combustion (63 fuels in energy, mass or volume units), mobile combustion (CO2 from the fuel, CH4 and N2O from the distance and model year of on-road vehicles or the fuel of non-road equipment), refrigerant and other gas releases (32 gases, 30 blends or an entered GWP), purchased electricity by eGRID subregion or an entered factor with the location-based and market-based totals, purchased steam and heat, distance-based scope 3 transport, business travel and commuting, and waste by material and treatment are multiplied by the factors of the EPA GHG Emission Factors Hub (15 January 2025), which the tool carries cell for cell, and weighted by the 100-year global warming potentials of the IPCC Fourth, Fifth or Sixth Assessment Report. The results are CO2, CH4, N2O and CO2e per row, totals by scope, category and gas with biogenic CO2 reported separately, intensity per revenue, employee, floor area and unit of output, the change against a base year with a linear target path, a what-if table of efficiency, fuel switching and renewable electricity, the uncertainty of the totals from entered activity-data ranges, and a CSV export. The first default row is the natural gas boiler example of the EPA stationary combustion guidance (326.7 metric tons CO2e).
1 worked example reproduced, listed on the tool page.