At my engineering school, we had a mandatory lecture of the environmental impact of IT. Initially, I thought it was some bullshit lecture that the education ministry imposed on us, and all I had to do was sign the attendance sheet at the end and be done with it.
But it did stick with me, we know that crypto mining consumes massive amounts of power to the point where Ethereum had to switch to the more efficient Proof-of-Stake in late 2022. Now, the recent hype of AI is starting to exacerbate energy consumption since petabytes of data have to be stored in data centres, then the models have to be trained for months on end.
In fact, there are many sectors of IT industry that consumes gigantic amount of energy, and I think it's something to be considered when we're using the Internet.