To give some context, it is important to understand what is Decentralized Finance (DeFi) and what are the problems it is currently facing: DeFi is a real revolution that has emerged in the recent years, its growth is exponential and is changing the way we see and make practical use of finance. Nevertheless it still faces two major issues: high transaction costs and huge carbon footprint on the environment. The rise of eco-friendly and cost effective blockchains is imminent and necessary.I. Wh...