[Terrapreta] Where do you get it?

[lou gold]

Johannes Lehmann has offered a concise review of the potential of biochar to
address global warming here:

http://www.pdfdownload.org/pdf2html/pdf2html.php?url=http%3A%2F%2Fwww.geooekologie.de%2Fdownload_forum%2Fforum_2007_2_spfo072b.pdf&images=yes

As I understand it, he imagines a new style agriculture that has carbon
capture and sequestration built into it. The feedstock is agricultural
waste.

Globally, there is a large
amount of carbon that annually cy-
cles from the atmosphere into plants
and soils and back again into the
atmosphere. This pool is about 1-2
orders of magnitude larger than
global annual emissions from fossil
fuels (IPCC 2007). Even if only a
fraction of one percent of that annu-
ally cycling pool of carbon can be
diverted into a much slower biochar
cycle, a considerable reduction of
atmospheric carbon dioxide content
could be achieved.

lou



On Mon, Jun 9, 2008 at 5:57 AM, folke Günther <folkeg at gmail.com> wrote:

>
>
> 2008/6/5 Kurt Treutlein <rukurt at westnet.com.au>:
>
>> I've raised this question before, and so have others. If we consider the
>> large scale production of charcoal, to be used for TP, where is the
>> biomass feedstock to come from?
>>
> *I** certainly think that if a tax is raised on carbon dioxide emissions
> and the same (or at least a similar) amount is paid to those that sequester
> carbon (as charcoal, which is 3.77 kg more carbon per kilo as the carbon
> conten of carbon dioxide), then the wole invention capacity of mankind would
> be released, and certainly a lot of feedstock would be found.
> I rather think that the inverse problem would occur: that more biomass that
> the carrying capacity would be harvested. Therefore I think that an
> (international?) body need to be raised, so that takng out biomass that is
> damging the ecological system wold lead to a detention of payment, which may
> imply a use of benign methods.
> FG
> *
>
>
> --
> NB :Send your mails to folkeg at gmail.com, not to holon.se
> ----------------------------------------
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