@EJWagenmakers the internet (and LLMs, since they are largely trained on the same data) gives you conflicting information because tech companies are far from transparent on this topic. Whether or not the energy consumption is higher or equivalent to the other things you mentioned (which, we already know, require energy mostly from fossil fuels) might overlook the fact that people didn't stop all these other activities, they added the use of LLMs on top of that.
So, to me, the question remains: is the use of LLMs ethical, in the sense that the advantages outweigh the costs? At the moment, my answer is no. This also applies to scientific writing: while it might be a less frivolous use of LLMs than asking to generate a picture of a rat on a unicycle, it still does not justify the cost.