"And why not?" haha all you boomers are harping on about how it can't happen quick, I'm being realistic. Ultimately yes asap would be best case scenario, but that's not going to happen.
I'm not saying some fossil fuels are good Jeff Tracy

We need to lower the amount that we are using and increase the amount of renewables.
Net zero on electricity generation should be the focus.
Volcanic eruptions - not exactly viable as we can't control these

however human activities produce 100 times more CO2 than volcanic eruptions annually (
https://climate.nasa.gov/faq/42/what-do-volcanoes-have-to-do-with-climate-change/)
Armed Forces - sure, when there is viable technology that can replace existing military tech.
Agriculture practices - definitely, but mass scale electricity production via coal and gas is more pressing.