There are so many things we interact with that hurt the environment that I wouldn’t take too much personal blame if I were you. The big time miners are the ones using the electricity, and they could use their profits to invest in renewable sources for their mining. They just don’t do it, much like how every other company in the world doesn’t take environmentalism seriously and just says “you first”.

The government needs to focus on making renewable energy investment a requirement for the biggest offenders. That is the only way we will force large scale change that actually matters.

Well, if you use credit cards that data gets tracked, stored, mined for years to come, not to mention the dozens of internet servers it took for you to buy that bread in the immediate. If you use cash, I'd assume some local authorities use extra AI to track your movements via cloud cameras (plus fiat isn't fungible since it has serial numbers)

It would be nice to hear the "pro-[insert your local fiat]" energy use when people argue environmentalism against cryptocurrencies