Having read the entire post, i think there’s a misunderstanding :

• this post is about ChatGPT and LLM chatbots in general, not AI as a whole.
• This post claims to be 100% aligned with scientists and that AI as a whole is bad for the environment.
• What they claim is that chatbots are only 1-3% of AI use and yet benefit to 400 million people (rest is mostly business stuff and serves more entreprises or very specific needs), therefore they do not consume much by themselves (just like we could keep 1-3% of cars going and be just fine with environment)