It is an option. A better one would be to invest in non-fossil energy and make it profitable to the point that using fossil energy has no economical sense. I hope that states are going to invest more in nuclear energy, despite the potential to feck up things. Unfortunately, in some cases (like Germany) this is not happening (and the fools are going back to fossils) cause of doom-mongering after the Fukushima incident.
In any case, I think that we will survive the climate change threat, and probably it will be because of innovation, rather than spending less energy.
Nazis were a very unconventional system. Far-right in most things, but also with a very high dose of socialism (they also had 'socialist' in the name of the party).
(i agree about nuclear.)
i think the combination of free markets, private ownership, nation-states, and democracy combine to make climate action very difficult.
competition (both between companies and also between nations) will mean that even as renewables get cheaper, so do fossil fuels with new methods of finding/extracting them and established ways of using them, and not using them puts you at a disadvantage. if you consider market actors to be looking for their own interests, it doesn't make sense for them to sacrifice profits for benefits that they won't see for another few decades (by which time they might be dead).
private ownership means that the very wealthy owners of fossil fuel companies can continue to influence both government policies and public opinion via private media.
democracy means that people can choose not to take temporary pain and there will always be someone promising that path.
i know the EU gets cited a lot as a climate success tory and in some ways it is, but a lot of its manufacturing is outsourced and those emissions continue. ii not sure what the total will look like if that is accounted for. this basically leaves early 90s russia (largest drop in living standards in modern history) and late 90s/early 00s cuba (dying because of embargo) as the only places with sustained emission reductions.
...
On Nazis -
while they did raise social spending, they also re-privatised many state-owned enterprises. i can't say this for sure but multiple articles i've read have said that the word privatisation itself became popular as a way to describe their policy.* even during the war, the industries essential to the war effort continued under roughly the same management, and with the non-jewish owners compensated, there was no large-scale confiscation of non-jewish businesses.
speaking strictly of their economic policies, they would be not be recognisable as socialist. and there is a reason for that. nazi ideology is based on competition and a war of wills/races/nations. while they disliked the international nature of the market, the fact that companies could go beyond and become more poweful than nation-states, they did like the market as a sphere of competition to separate the worthy from the rest. things that form the basis of socialism, like equal human worth, would not be meaningful to them.
*quick google found this -
http://www.ub.edu/graap/nazi.pdf and
https://www.jacobinmag.com/2014/04/capitalism-and-nazism/