The problem with Carbon Calculator sites
..is that they provide a snapshot. If you change your habits you have to go back to the site and go through the whole process again. This is neither realistic or a very efficient use of time.
Furthermore, the DEFRA site like the rest of the offerings out there provides a snapshot dependent on the quality of the questions asked and honesty/knowledge of the user. Sites also rarely factor in enough of foot powered activity, and realistic representation of an individual should reflect how 'efficiently' they get from A to B.
And anyway, live information/knowledge vs. static/retrospective?!? Let me see now.....
Its also entirely short sighted to identify another "elecrictical device" as being a downfall, when the footprint and consumption of the device can be paid back in potential carbon efficiency gains in a matter of days. It is to fail to understand the bigger picture....Reminds me of the farmer who saved his seeds and as a result never grew anything. False economies.
And finally further development work has already made it possible that even a physical device is not neccessary. The last time I checked, there was a high likelyhood that it was the mobile carrying peoples of this world who were more likely to be the polluters.
Carbon Hero makes small differences add up to large ones.
Thanks to James and RegHardware for the posting though.