Comment by pjc50
2 years ago
This seems like an absurdly energy-intensive plan because you'd have to spend energy to maintain your mountain-sized pile .. which will heat itself up if it ever reaches warm enough to start decaying.
The most viable farm based approach would be "reverse coal mine": make charcoal from the biomass by reduced-oxygen combustion, then put it all in the big pit you made when you dug up all that coal.
However, there's no economic model for any of this, so carbon capture is never going to go beyond pilot schemes.
Have it grow on wire roap dangling over swamps,withdraw the netting end of season the greenery sinks to the bottom, zero energy effort.
Greenery at the bottom of a swamp would decomposes and emit methane instead of CO2, even worse!
turn the swamp slightly accidic to inhibit life
Wouldn’t the easiest way to be just have goats eat it and then collect and bury the poop?
Maybe, but the goats will turn a lot of the carbon sequestered in the biomass back into CO2. All animals do that to the carbon in the food they eat.