They say it is due to a small amount of fuel
left unburnt when the engine is shut off.
You will
leave unburnt fuel inside the cylinder.
But clearly the best way to sequester carbon is to
leave it unburnt, underground, and find other fuels.
Not exact matches
Interestingly they only do this when the fire has been particularly intense,
leaving no pockets of
unburnt vegetation behind for native animals to hide in.
If such fires recurred with sufficiently high frequency, and in a pattern that
left few areas
unburnt, it is possible that elevated predation due to fire could reduce small mammals and prevent recovery over large areas.