Crypto could also become one of the biggest contributors to climate change, since it’s literally just wasting as much energy as possible to make money.
The monetary system itself is a big contributor or climate change. Kings used to require empires in order to protect their gold stores. I think securing the longest PoW (or PoS) chain is a very good use of resources, as it's tantamount to a king protecting his gold.
yeah, I don't buy the future of crypto. Too many cons (energy and other) not enough pros.