Evidence that travels with the result

See the source route behind each estimate

Explore the sources behind device footprints: manufacturer publications where applicable, documented models where data is missing, and the assumptions that connect them.

Create your first calculation freeView all source reports

Manufacturer source examples you can inspect

See how a published model report is connected to the right configuration, lifecycle boundary and original source.

Apple

Apple MacBook Air M1 (2020), 256GB

161kg CO₂eManufacturer-reported lifecycle footprint

Apple reports 161 kg CO₂e for the MacBook Air M1 256GB reference lifecycle. Review the 76% production share and configuration limits before modelling a second life.

Inspect source and scope

Dynabook

Dynabook Tecra A40-J, i7 / 16GB

190kg CO₂eManufacturer-reported lifecycle footprint

Dynabook reports 190 kg CO₂e for the Tecra A40-J i7/16GB: 97 kg manufacturing and 57 kg use in a five-year US scenario with 21.3 kWh per year.

Inspect source and scope

Dynabook

Dynabook Tecra A50-J, i7 / 32GB

210kg CO₂eManufacturer-reported lifecycle footprint

Dynabook reports 210 kg CO₂e for the Tecra A50-J i7/32GB: 113 kg manufacturing and 61 kg use over five US years. Its 1 kg end-of-life phase is not zero.

Inspect source and scope

Dell

Dell E2222H

485kg CO₂eManufacturer-reported lifecycle footprint

Dell reports 485 kg CO₂e for the E2222H in a six-year EU use scenario. Review the 66.1% manufacturing share, 37.99 kWh yearly use and reported spread.

Inspect source and scope

Apple

Apple iPhone 13, 128GB

64kg CO₂eManufacturer-reported lifecycle footprint

Apple reports 64 kg CO₂e for the iPhone 13 128GB reference lifecycle, with 81% production. Keep storage variants and second-life scenarios separate.

Inspect source and scope

Why this is a selected library

Only individually reviewed primary reports with an identifiable configuration, lifecycle boundary and traceable source are published here. Missing uncertainty is disclosed. Conflicting records and unreviewed catalog entries do not become public model pages. This library is a reviewed selection, not the full CarbonTrace catalog.

Explore by device category

Source routes, ordered by specificity

Tier 1 uses product-specific manufacturer data. Tier 4 keeps all 48 categories calculable with the CarbonTrace model.

Tier 1

Manufacturer PCF

Manufacturer-published PCF documents. The declared standard, boundary and verification status are shown per source; manufacturer publication alone does not establish ISO compliance.

Tier 2

Third-party verified

Third-party verified data from Carbon Trust, EPDs (ISO 14025), or independent LCA studies.

Tier 3

Aggregated database

Aggregated from Boavizta, CarbonPDF, or Carbon Catalogue datasets with statistical validation.

Tier 4

Parametric estimate

CarbonTrace category model, used when no matched manufacturer PCF is available. Add exact device data to increase specificity.

Create a substantiated result for your own customer

Start free with 25 calculations per month. Review the source and assumptions before sharing a result.

Create a free accountView pricing