[Terrapreta] Dumping Char in a hole

[Kevin Chisholm]

Dear Kurt

If we don't advance the cause of New Terra Preta to the point that there 
are palpable benefits in agriculture, then burying it in old mine 
workings is indeed an option.

However, your suggestion makes far more sense...leave the coal in the 
ground and burn the biochar instead. That way, there would be a Carbon 
Negative Benefit:

1: The fossil coal would remain unburned
2: Fossil energy costs associated with biochar production would likely 
be less than fossil energy requirements for an equivalent energy content 
in coal.

Best wishes,

Kevin

Kurt Treutlein wrote:
> Hi folkes
>
> This is NOT an attack on anyone.
>
> Someone just said:
>
> "Otherwise, it would be cheaper to simply dump the
> biochar into a hole in the ground. As coal is taken out of the ground,
> we could simply backfill with biochar."
>
> Others, in the past have said substantially the same thing.
>
> It is a concept that bothers me greatly. Somehow there is something 
> perverted  about the concept of digging up fossil carbon and replacing 
> it with new carbon. Perhaps it would be better to burn it in a power 
> generator instead and thereby release a lesser amount of fossil carbon 
> into the atmosphere.
>
> Better still, use it to make Terrapreta soil :)
>
>
> regards
>
> Kurt
>
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