> For instance, the emission footprint of a US resident is approximately 15 metric tons CO2e per year [22], which translates to roughly 1.7 kg CO2e per hour. Assuming that a person’s emissions while writing are consistent with their overall annual impact, we estimate that the carbon footprint for a US resident producing a page of text (250 words) is approximately 1400 g CO2e.
Averaging this makes no sense. I would imagine driving a car is going to cause more emissions than typing on a laptop. And if we are comparing "emissions from AI writing text" to "emissions from humans writing text" we cannot be mixing the the latter with a much more emissions causing activity and still have a fair comparison.
But that's besides the point, since it seems that the number being used by the authors isn't even personal emissions -- looking at the source [22], the 15 metric tons CO2e per year is labeled as "Per capita CO₂ emissions; Carbon dioxide (CO₂) emissions from fossil fuels and industry. Land-use change is not included."
This isn't personal emissions! This is emissions from the entire industrial sector of the USA divided by population. No wonder why AI is supposedly "100-1000x" more efficient. Counting this against the human makes no sense since these emissions are completely unrelated to the writing task the person is doing, its simply the fact they are a person living in the world.