Are you seriously - seriously? equating buying individually wrapped cheese with completely reorganzing our entire society's sources of energy away from polluting sources?

That is not a sane comment.

The cost of getting away from fossil fuels would be something like 100 times the cost of all the space program.

We could do it, if we wanted to, but thanks to aggressively ignorant people like you, someone with absolutely no knowledge of science, we aren't and we won't.