With a carbon price of zero, the electricity market does not work - coal is effectively subsidized by a failure to account for the damage of global warming. Offsetting your plane ticket's carbon footprint for a few dollars or bringing a 'bag for life' unfortunately will not make a meaningful impact. We need a revolution with at least the same magnitude as crypto shaking up the world of finance. That's why we need DeFi to put a price on greenhouse gases.
Cardano is different. Built with our hearts and souls over many years, it is based on academic research and built on first principles. Plutus smart contracts are deterministic, secure and fast.