Comment by abaga129

The carbon footprint you refer to applies only to proof-of-work blockchains. Unfortunately 3 of the largest systems use this (bitcoin, Ethereum, and doge) but an alternative has already been created called proof-of-stake. Nearly every new crypto uses proof-of-stake and Ethereum plans to switch to it. The market seems to approve of this as well as some of the big gainers in market cap use this system.