They are governing according to the will of the people (to some degree). Fact is that outside the western intelligentsia nobody really gives a shit about climate change and why would they? For people without children, certainly it is not their problem. The world's resources are plenty enough for this generation and even the next. Everyone else would be stupid to sacrifice their own wealth for an absolutely minuscule chance of improvement without an enforcible promise that their neighbours will do the same. They will just end up doing it all for nothing. It's a typical tragedy-of-the-commons dilemma.