Proof of Stake vs The Merge

Proof of Stake (PoS) is a blockchain consensus mechanism where validators are chosen to create new blocks and verify transactions based on the amount of cryptocurrency they stake, rather than computational power.

Ethereum's landmark September 2022 transition from energy-intensive proof-of-work mining to efficient proof-of-stake validation, reducing the network's energy consumption by approximately 99.95% while maintaining security and decentralization.