from what i understand (and i could be wrong), you could make biofuels using atmospheric co2, alguae, heat from the grid during low demand... when you burn it,

from what i understand (and i could be wrong), you could make biofuels using atmospheric co2, alguae, heat from the grid during low demand... when you burn it, it releases that co2, but when you’re not it acts as a big carbon sink could be totally off base, or very much a “not yet industrialised” process... but the idea is super cool none the less