Environmental issues have never been as important as they are today. Climate change is underway, the health of the planet is declining, and the entire world must act at its level to preserve it. These ecological efforts particularly concern those that govern the global economy. Companies are now at a turning point, that of change. It is no longer a choice but an imperative, so European authorities have set up market mechanisms to encourage the transition to less carbon-intensive activities. But imposing this transition on companies is not the only way.