This is a compiled list of carbon footprints compiled from various sources used for carbon footprint calculations if you are thinking about buying an on-site server. If you wish to add more servers to the list, feel free to issue a pull request.
kg CO2e w/o use (kg. CO2 equivalent) is the total carbon footprint for the manufacture, transport and various other carbon emissions that is not related to the actual use of the server.
kg CO2e w/ use is the total carbon footprint expected after 4 years of use.
The data listed before has been extracted and compiled from the official Dell website