Since the industrial revolution, the world is evolving and constantly changing. The impact of technological development, however seems to tarnish the environment. Today, finding sustainable solutions is more and more complicated, especially in a world where the only word that matters is profit. The problem is there is no planet B. Technological breakthrough is the root to problems, but it could also be a solution. Decentralized systems, such as Blockchain, appear as way to fix those environmental issues. The blockchain is a powerful and persuasive technology. Yet, it still too nascent to be reliable and it still has some drawbacks.