[Committee] How much land for Biomass (WAS : Effect of methane leakage on Carbon footprint of gas)

[Dr. Adrian Wrigley]

(long CC list!)
Robin Smith wrote:
> This is probably a bit off topic but please can you give me your quick
> opinions. I'm doing the maths on the CCS yields possible from Biomass with
> all the lifecycle process deficiencies included. Target is 1Gt CO2 per year
> as per the Virgin Earth Prize!
> 
> Question) Given the land available, efficiencies and energy output, would 9%
> of the global land surface area needed to yield the 1Gt be a field too far
> in your opinions?

Yes.

Imagine the land reshaped as a square, divided into 3x3 smaller squares.
9% is about one of those small squares.  You probably want land someone else wants.

You've not made it clear exactly what process you're planning.  Where is this
biomass coming from?  Can you put it into a closed bioreactor silo?

I still think dumping biomass at sea directly is the answer, once we stop
digging it up to burn it.  Perhaps precipitating out plankton and making
more limestone.
--
Adrian