I recently posted an article on LinkedIn which stated that responsibility for Sustainability and authority to act should be aligned. A below the line commenter agreed saying "Those with responsibility must be given authority."
Well, on reflection, it's the other way around. If you have highly empowered Sustainability champions overruling their bosses then you will get chaos – you are undermining the way the organisation works.
It's the existing decision makers who must be given responsibility. That's the proper embedding of Sustainability into the DNA of the organisation.