On Jan 23, 10:28 am, Tom Adams <[email protected]> wrote:
> On Dec 8 2008, 7:41 pm, "David B. Benson" <[email protected]>
> wrote:
>
>
>
>
>
> > On Dec 6, 3:48 pm, "[email protected]"
>
> > <[email protected]> wrote:
> > > ...
> > > Are there any known negatives
> > > about biochar? Any idea of the economics involved?
>
> > Biochar is almost surely to include some VOCs (volatile organic carbon
> > compounds). More than just a little of this is quite bad. Some tests
> > suggest that soils with 30% biochar have overdone it and radishes
> > won't start.
>
> > On a large scale, assuming no centralized source of dry biomass
> > collected for other reasons, the cost will be about $120--150 per
> > tonne once spreading costs are included. Very oten biowastes are
> > collected anyway during harvest, dropping the cost down to around $75
> > per tonne after spreading. Modest amounts produce impressive returns
> > on investment for both maize and wheat (probably other crops as well).
>
> > Here is a useful link for you:
>
> >http://terrapreta.bioenergylists.org/
>
> Lovelock thinks its mankind's last hope:
>
> http://www.newscientist.com/article/mg20126921.500-one-last-chance-to...
>
> He was interview by Gaia Vince:
>
> http://i161.photobucket.com/albums/t222/inkettes/SSAG%2022Feb2007/gai...-
> Hide quoted text -
>
> - Show quoted text -
Five year's ago nuke plants were our last hope, according to
Lovelock. Now it's charcold.
Lovelock may be the only person in history who lost a Nobel prize by
spouting off. He made the mistake of pooh poohing CFCs in the
atmosphere after he discovered them. Two other blokes (inspired my
Lovelock's discovery) got the prize, and there is room for 3 under the
rules.
(Not to say that charcold production is a bad idea)
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