If you greatly dislike paying for gasoline consider buying a natural gas capable automobile or pickup. In many areas you can drill a modest depth well and get enough gas to fully charge a vehicle tank once a day. Geologic maps can show you where there are old capped gas wells that can easily produce enough methane to fill vehicles. You can also make methane with relatively simple bio-digesters.

I was taught that the world’s coal was the largest fossil fuel resource.

Today we know that natural gas worldwide and in sea floor methane hydrate deposits exceed coal by at least ten times.

That is not all good news.

If an modest asteroid hits an area of seafloor that has both methane hydrate and gypsum rock deposits... we are all doomed.