Hmm, to be pedantic, oil isn't really a fossil fuel and the carbon in oil never was in the atmosphere. Oil is made from geological methane by archaia bacteria deep under ground. Coal, yes, that was in the atmosphere, since it is plant (fern) residue. It probably took much longer than 10,000 years for the archaia to make 1 year's worth of consumable oil. On the other hand, oil production is still going on, but being so effing slow, it doesn't help.
In my experience, Slackware is a lot (very noticeably) faster than Fedora on the same HW. I don't know whether it is due to systemd or SELinux or something else entirely, but if you need raw speed, then you seriously should consider going back to basics.
Err.. no, we don't want practical ideas on the modern Sloshdat. The modern Sloshdat is all liberal and fuzzy bunny loving and tree hugging, with no real work to be done by anyone, just some standing around with posters about some lost causes...
He can grow coal by growing steel production. He can grow steel production by putting an anti dumping tax on Chinese steel and putting a steel fence along the Mexican border. That will put lots of miners and rust belt workers back at work.
...and the fly ash and sulphur can be captured with proper electrostatic filters and sold and used as a by product. The trouble is that most American coal plants are old and inefficient, but that doesn't mean that coal fired plants in the rest of the world are also all old and inefficient.