"Carbon-neutral" sounds fine, but it's ridiculous to think that atmospheric
CO2 will stop rising just because we switch from fossil-carbon fuel to
biofuel-carbon fuel. The only way to stop that is to stop burning
carbon-based fuels altogether.


Or find a plant or environment that's particularly good at
sucking carbon out of the atmosphere. Crank the global
temp a degree or so, And I'll bet you get algae blooms
like you never saw... that ought to do it...