HOW WE CALCULATE
Methodology 2030 Calculator
Our carbon footprint calculation tool for products was developed together with the Swedish environmental research consultancy 2050. We developed a database of CO2e emissions data for the cradle-to-gate emissions generated by materials used in all parts and packaging of products. This is calculated by using the total weight of each finished part/material, the average energy use for product assembly (by product category, country location/energy mix and type of energy used in assembly) and transportation (by total product weight, distance travelled and mode of transport between supplier, manufacturing facility and distribution center).
The emissions factor data for materials is sourced from a combination of licensed and open data sources including EcoInvent, ICE (University of Bath), IVL (Swedish Environmental Institute), DEFRA (Department for Environment, Food & Rural Affairs) and using own LCI/LCA data. All data was normalized to cover the same hotspots and range of values for the cradle-to-gate phases used in our calculations.
The emissions factors used for energy consumption in European countries were sourced from AIB (Association of Issuing Bodies) while the data for non-European countries was sourced from IEA (International Energy Agency).
All emissions factors for transportation were sourced from NTM (Network for Transport Measures), calculating fuel/energy use and emissions of greenhouse gases and air pollutants related to individual cargo shipments for all four modes of freight and passenger transport respectively – road, rail, sea and air, including multiple size and capacity options for each mode of transport.
Distances between supplier, manufacturing facility and distribution center locations are calculated using Google Maps Places API.
We are continuously adding new materials to our materials impact factors database. The product categories available in the Product Category dropdown menu reflect the categories for which we feel we currently have sufficient material impact factors in our database. If you are missing materials, contact us and we can try to source or calculate a custom factor for you.
Emission factors for energy use during assembly are based on an average per product category, which can vary depending on the actual product being produced. If the actual kWh hours consumed are known, these can be entered manually into the calculator to provide a more precise calculation.
Distances provided by Google Maps Places do not reflect exact routing for every mode of transport between locations. We have addressed this in the calculations by compensating for eventual distance discrepancies based on mode of transport.