[Terrapreta] Catalyst: Carbon Bigfoot

[Kevin Chisholm]

Dear Lou

lou gold wrote:
> Hi Duane,
>
> del...
> The only thing that I question is your assertion that we must continue 
> to generate CO2 in order to feed the plants. It seems to me that there 
> is a huge reservoir already available. Do you know of any studies or 
> models that might suggest when CO2 will "peak" and require replacement 
> inputs, perhaps from fossil fuels?
The Greenhouse Industry has done alot of work, and research papers, on 
the benefits and economics of CO2 to greenhouse atmospheres in teh 
winter, when greenhouse ventilation is low. The plant canopy strips the 
CO2 from teh closed atmosphere very quickly. Commonly propane or natural 
gas is burned, with products of combustion vented into teh growing 
space, to enrich CO2 to enhance plant growth.

A Google search for "greenhouse CO2 Enrichment" gives 21 hits; with no 
quotes, you get about 340,000 hits.

Best wishes,

Kevin
>
> hugs,  
>
> lou
>
> On Dec 8, 2007 2:30 PM, Duane Pendergast <still.thinking at computare.org 
> <mailto:still.thinking at computare.org>> wrote:
>
>     Morning Sean,
>
>      
>
>     My response to you was totally sincere. After 20 years trying to
>     follow the climate issue, I'm becoming more and more skeptical
>     about the dire claims made in the name of climate change due to
>     greenhouse gas emissions.
>
>      
>
>     I was just trying to point out, that if terra preta lives up to
>     expectations on this site, there is potential for excess removal
>     of CO2 from the atmosphere. Danny Day has suggested that we are
>     seeing the "stumbling steps of a brand new species evolved to
>     stabilize this recurring imbalance" with reference to the drastic
>     cycling between ice ages seen in the long term climate change
>     record. He sees the burgeoning human population, including some
>     three billion now impoverished farmers, as key to planetary
>     survival and prosperity. The ultimate outcome of successful
>     demonstration of terra preta benefits could thus be an incentive
>     to geo-agricultural engineering on a massive scale. That vision
>     will be self limiting if plant growth is suppressed by a shortage
>     of atmospheric carbon dioxide. A next logical step for humanity
>     could be to continue to transfer carbon from fossil fuel into the
>     soil.
>
>      
>
>     There is plenty of scope for climate change ballyhoo at the UNFCCC
>     meeting in Bali and in the media. Kevin Chisholm's gentle
>     suggestion in his response to your post that the list focus on
>     demonstrating the efficacy of the terra preta concept has
>     considerable merit.
>
>      
>
>     Duane
>
>      
>
>     -----Original Message-----
>     *From:* Sean K. Barry [mailto:sean.barry at juno.com
>     <mailto:sean.barry at juno.com>]
>     *Sent:* December 7, 2007 9:51 PM
>     *To:* still.thinking at computare.org
>     <mailto:still.thinking at computare.org>; 'lou gold'
>     *Cc:* 'Terrapreta'
>     *Subject:* Re: [Terrapreta] Catalyst: Carbon Bigfoot
>
>      
>
>     Hi Duane,
>
>      
>
>     WHAT?!  Is your response to my post "tongue in cheek"?  I hope so
>     ... or you really do not see things the way I do, either.  Burning
>     coal and oil has to slow way down, even to stopping altogether. 
>     If coal energy is required, then it has to change over to "clean"
>     coal, without the release of CO2 emissions.
>
>      
>
>          
>
>
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>
>
>
> -- 
> http://lougold.blogspot.com/
> http://www.flickr.com/photos/visionshare/sets/ 
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