nfts and crypto can't ever be green. cryptomining is harmful to the environment, and there's no way around it. imagine you're downloading a huge file on your computer and it's going to take hours to finish, so you leave it on to finish downloading. from the electricity being used to the heat generated by the computer, that stuff causes harm to the environment. and because of that, there's no going green option. their idea of going green would probably be by using alternative energy methods, like solar or wind power, except that's not gonna change the fact that the mining is still causing harm to the environment.
crypto is a scam, it's no different than pyramid schemes. the ones that got in early, those are at the top, and they're making the big bucks, and they gotta make sure they get in as many patsies into it, because the more lower level people in it there are, the more the value of it goes up, and the more money the people at the top make, but the ones at the lower levels, they'll be lucky to not go bankrupt. nfts are the dude version of avon.
i assume blake got in early in the pokmi game, and so he's at the top, and he's gonna make good money from getting people to buy into it. so yeah, he's probably a scammer. if he's not a scammer, he's a total moron and being completely duped by the people at pokmi