People who complain about mining "waste" will point you to their centralized shitcoin as a solution.
PoW + Nakamoto Consensus is the gold standard to converging on a unified distributed ledger in a decentralized manner. Other alternatives trend toward centralization e.g $Steem. https://t.co/PG7y4MrAfC
RT @antonsh: I was quoted in this @Telegraph article at the weekend. TL;DR #1st gen blockchains like the #bitcoin one can be costly/inefficient, but new companies like @mattereum which work outside of the #cryptocurrency space & next gen blockchains solve this problem & address #climatechange https://t.co/WuruQ5Dl6S