https://wccftech.com/polkadot-dot-has-the-lowest-carbon-footprint-among-major-cryptocurrencies-corresponding-to-just-5-business-class-airplane-roundtrips-between-munich-and-san-francisco/

Polkadot (DOT), a decentralized protocol that allows unrelated blockchains to interact with each other in a secure manner, is currently the greenest major cryptocurrency on the market, as per a tabulation by Crypto Carbon Ratings Institute.

Before delving into this subject, let’s take a look at Polkadot’s unique architecture.