No commercially viable alternative when the externalities aren't priced correctly. But hydrocarbons are already made from coal: https://en.wikipedia.org/wiki/F

No commercially viable alternative when the externalities aren't priced correctly. But hydrocarbons are already made from coal: https://en.wikipedia.org/wiki/Fischer%E2%80%93Tropsch_process https://en.wikipedia.org/wiki/Fischer%E2%80%93Tropsch_proces... The same process can be used with biochar, or potentially carbon from some future carbon capture method.