$ETH Ethereum (ETH) has revolutionized the blockchain landscape since its launch in 2015 by Vitalik Buterin. As the second-largest cryptocurrency by market cap, ETH powers a decentralized platform enabling smart contracts and decentralized applications (dApps). Its native token, Ether, fuels transactions and computational services on the network. Ethereum’s transition to Proof of Stake with the 2022 Merge reduced energy consumption by 99.95%, making it more sustainable. Despite challenges like scalability and high gas fees, upgrades like sharding aim to enhance efficiency. ETH’s robust ecosystem, hosting DeFi, NFTs, and more, solidifies its role as a cornerstone of Web3 innovation.