Bitcoin Green is two things: first and foremost, a campaign to raise awareness for sustainability issues arising from the proof-of-work consensus commonly used in public blockchain networks. Secondly, a cryptocurrency that is dramatically faster, cheaper, and more scalable than Bitcoin in its current form. Nearly all of Bitcoin’s limitations and problems, i.e. high network fees, slow transaction times, massive energy consumption, frequent hard-forks that destroy network effects, etc., all stem from the network’s outdated SHA-256 proof-of-work consensus algorithm. We solve these problems by using proof-of-stake with masternodes to secure the network, instead of proof-of-work.