The tricky part is keeping the carbon in the plants. My grass clippings will decompose back into CO2 if you just dump it in a pile. A better option would be to dehydrate the clippings and bury it in a cave or something.
I also understand that there would be better plants than grass as well.
What if your grasses decomposed and were put under pressure by rocks inside said cave, slowly transforming into a rich, dark to jet black liquid hydrocarbon substance or something like that?
That would be pretty strange. Millions of years of stored sunlight and carbon, just liquefied and pumped underground on purpose.
The tricky part is keeping the carbon in the plants. My grass clippings will decompose back into CO2 if you just dump it in a pile. A better option would be to dehydrate the clippings and bury it in a cave or something.
I also understand that there would be better plants than grass as well.
What if your grasses decomposed and were put under pressure by rocks inside said cave, slowly transforming into a rich, dark to jet black liquid hydrocarbon substance or something like that?
That would be pretty strange. Millions of years of stored sunlight and carbon, just liquefied and pumped underground on purpose.