Green Blockchain refers to blockchain technologies designed with a focus on sustainability and minimal environmental impact. Traditional blockchains, particularly those using Proof of Work for transaction validation, consume significant energy, leading to concerns about carbon emissions and ecological damage.Green Blockchains aim to address these issues by implementing energy-efficient consensus mechanisms, such as Proof of Stake or Delegated Proof of Stake. These methods reduce energy consumption while maintaining security and decentralization. In addition to using more efficient technologies, some Green Blockchains incorporate renewable energy sources or offset carbon footprints. They promote eco-friendly practices and aim to create a sustainable future for blockchain applications.Overall, the push toward Green Blockchains represents an awareness of and response to environmental concerns, creating a balance between innovation and ecological responsibility.