In this Course, we explore how blockchain technology is being used to fund, protect, and sustain public goods, from clean air and open-source code to carbon credits and ethical supply chains. You’ll learn how distributed ledgers and smart contracts address the “free rider” problem, enabling new funding models like quadratic funding and regenerative finance. We’ll also dive into real-world applications like tokenized carbon credits, green DAOs, and blockchain-powered transparency in global supply chains. By the end, you’ll understand how blockchain can do more than build DeFi protocols. In fact, it can help build a better planet.