Indeed, targetting a specific industry seems like too focussed and approach that won't actually solve much.

Especially when you have e.g. the aluminium smelting industry that uses around 10x more energy*. Arguably more useful, but the externalities of using unclean energy for that process, and all other unclean energy consuming industries, should still be priced in.

If cryptocurrency miners want to use that energy, they can knock themselves out, but they should at least be strongly economically incentivised to do it in a CO2-minimizing way.

* (15,000 kWh per tonne) * (63.2 million tonnes annually) = around 948 TWh sources: - https://aluminiumleader.com/production/how_aluminium_is_prod... - https://agmetalminer.com/2015/11/24/power-costs-the-producti...

And better infrastrucure. If theres a need for NFTs then just do it on a already PoS blockchain like tezos. The migration should not be that much of a deal. Infrastructure and community is there. Tools which would help to migrate smart contracts also. I think it is really the lack of knowledge, that there is a blockchain solving the actual problem.

There is not, and will (likely) never be, a need for NFTs. They are a solution looking for a problem.

Some (mostly already very wealthy) people want them. That is not the same as a genuine need.

People are free to do what they want with their money. But it's just stupid to do it on a monster like ethereum. You could burn toiletpaper to power a datacenter. But it is stupid.