Welcome do democracy, where decisions reflect the majority positions. Technically there is a second tier of voting, with money, people could simply reject buying dirty energy, so if it's close to 50:50 split, you can still have a significant secondary effect. However, as you said, everyone is all for clean energy or using less energy, as long as it doesn't cost them more, or make them less comfortable. Heck, I somehow doubt even the minister who quit would choose to live in an unheated home (it is possible to live in one) or choose to walk or take a bicycle everywhere to save the environment. Often people like that are for clean energy because they can afford it, as can all their immediate friends and family. They assume most citizens are just like them and their friends, often incorrectly.
Most humans are wired to their immediate needs, and not to sacrifice their own livelihoods to save future generations. Notice for example how electric cars didn't take off until someone made them desirable as a car, not as an environmental cause. We need someone to make clean energy sexy, desirable. I don't know what that would take, perhaps ability to be independent from the grid?