NFTs: Cryptocurrency is not inherently bad for the environment.
Proof of work *is* inherently bad for the environment.
Not all cryptocurrencies use proof of work.
Some do, like Bitcoin, Litecoin, Dogecoin, BCH, Monero and Ethereum 1. Not all.
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Doesn't proof of stake just mean we're now creating new undemocratic oligarchies? Ie. where the people who own more get more of a say in how things are run? I don't see how that is any better?
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Not exactly, you can do stake-based governance, but that's not what proof of stake is in terms of blockchain consensus, it's about giving more verification votes to nodes who have staked more value. If you verify a block which is found to be malicious, you lose your stake.
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The key thing is that it doesn't require any significant processing power to do this. It's a good system for keeping the chain honest, while removing the environmental issues.
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