Cardano

Cardano is a blockchain platform that is open to the public. It’s decentralised and open-source, with consensus obtained by proof of stake. Its own coin, ADA, can be used to allow peer-to-peer transactions.

Charles Hoskinson, a co-founder of Ethereum, established Cardano in 2015. The Cardano Foundation, situated in Zug, Switzerland, oversees and supervises the project’s progress. It is the world’s largest cryptocurrency to employ a proof-of-stake blockchain, which is considered a more environmentally friendly alternative to proof-of-work protocols.

Read more here (Wikipedia)