I don't worry about my energy usage. Not one bit.

Because I have given the planet the best gift that I possibly can. I did not reproduce.

My wife has two children, so we are effectively neutral, but I personally know a lot of people who have had 4-5 kids.
I recently read about another woman who is having a 13 kid. That is a serious mental issue. I also know responsible people who had two kids and adopted more from poor countries. So there can be positive outcome in my opinion.

There are not any problems which I can think of which cannot be largely alleviated or even eliminated by population reduction. But this is NEVER talked about in media. All I ever hear is how we have to come up with a way to feed 9+ billion.

Why? Because population control breaks the infinite growth based economy that we depend on. We need to take care of that.

As for the fossil fuels, we need them to produce the technology to ween off of them. Instead every time we find some new supply, we cant export it fast enough. So much for energy independence. The rich will never learn they cant eat, breath and drink money.

Nuclear is good. Look up Thorium reactors. Not very popular because they don't produce the weapons grade plutonium we need so much of.

Coal is good...for generating synthetic oil. Just what the German war machine ran on during WW2.

https://en.wikipedia.org/wiki/Bergius_process

Conservation is good. Lets lobby for a four day work week as a start.
I could work from home almost every day. Coming to the office is just for status quo.