There’s a lot of talk about the environmental impact of NFTs lately. Let’s take a closer look at what that means. What is PoW (Proof of Work) A PoW model is what Bitcoin, Ethereum, and many other cryptocurrencies use to verify transactions. The ultra, extra, super-duper, simplified version is this: transactions are grouped into blocks (BLOCKchain… get it? ha.). Each individual transaction in the block needs to be independently verified. To do so, computers all over the…