Atom & renewable sources. 256x256 km of solar panels is enough for whole world.
> And any derivative products of fossil fuels such as plastics
You mean trash (99% of plastics produced)? Stop producing it.
> fertilizers
Use regenerative agriculture. Agriculture can perfectly well function without fossil fuel inputs.
> tractors and other machinery
Electric tractors. Should have been here decades ago.
> your idea of human fluorishing is where a massive perecentage of human labor is doing farm work again like in the 19th century
Maybe we shouldn't insist on 70+ % of workers working bullshit jobs, and let instead few of them work in agriculture instead. Many would like it, if they could support themselves with it.
It's only because of the exploitation of the soil, natural resources and humans, that current agricultural practices prevail. If it would mean that our food production would not be dependent on use of poisons, i think that would be good thing for everybody.
> fluorishing
Humour?