[Stoves] Could barbecues help fight climate change?

[Lloyd Helferty]

A.D.
I do know that Ron was one of the first to promote gasifier 
char-to-soils. I have been following this work closely as people like 
Nathaniel Mulcahy trek around the world promoting the concept.
You are right about the carbon of course...  I was quoting the article only.

   Lloyd Helferty, Engineering Technologist
   Principal, Biochar Consulting (Canada)
   www.biochar-consulting.ca
   603-48 Suncrest Blvd, Thornhill, ON, Canada
   905-707-8754; 647-886-8754 (cell)
      Skype: lloyd.helferty
   Steering Committee member, Canadian Biochar Initiative
   President, Co-founder&  CBI Liaison, Biochar-Ontario
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On 11/17/2010 10:27 PM, Anand Karve wrote:
> Dear Mr. Helferty,
> the idea of using a charcoal making stove for cooking and putting the 
> resultant charcoal into the soil is an idea that has been suggested 
> years ago by Ron Larson. Secondly, it is not true that most of the 
> carbon in the fuel is retained in the charcoal. It is likely that you 
> were just quoting Zaelke, but the pyrolysis gas, that is burned in 
> these stoves also contains carbon. My estimate is that charcoal 
> retains about half of the original carbon in the fuel.
> Yours
> A.D.Karve
>
> On Wed, Nov 17, 2010 at 10:46 PM, Lloyd Helferty 
> <lhelferty at sympatico.ca <mailto:lhelferty at sympatico.ca>> wrote:
>
>     http://www.guardian.co.uk/environment/blog/2010/oct/21/barbecues-climate-change
>     October 21, 2010
>
>     Durwood Zaelke's emergency plan for tackling climate change ranges
>     from the Montreal protocol to carbon-negative barbecues
>
>     Barbecues that remove CO2 from the air could play a role in the
>     fight against climate change according to Durwood Zaelke, a
>     leading expert on rapid responses to global warming.
>
>     This year's outdoor cooking season might be over, but Zaelke
>     suggested at last week's 10:10 talk that from next summer
>     consumers should start demanding barbecues that do their bit for
>     the planet by generating rather than consuming charcoal – or biochar.
>
>     Zaelke's idea is based on a stove designed for use in the
>     developing world by Rob Flanagan. The stove creates heat by
>     turning wood or other biomass into charcoal, a process that
>     releases combustible gases.
>
>     Once the cooking is over, most of the carbon from the fuel remains
>     in the stove in the form of charcoal. This can then be mixed in
>     with soil, a process that sequesters the carbon for thousands of
>     years and boosts crop productivity.
>
>     ... But whatever we do with non-CO2 gases, Zaelke says, we also
>     urgently need not just to reduce carbon dioxide, but to get to a
>     point as soon as possible where the world becomes carbon negative,
>     with humans sequestering more CO2 than we release. "That might
>     sound crazy," he says, "but we could do it".
>
>     The biochar barbecue idea is, I guess, really just a way for
>     Zaelke to remind us that there are various techniques – on big and
>     small scales – that we could use to suck CO2 out of the air.
>
>     -- 
>
>      Lloyd Helferty
>
>
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>
> -- 
> ***
> Dr. A.D. Karve
> President, Appropriate Rural Technology Institute (ARTI)
>
> *Please change my email address in your records to: adkarve at gmail.com 
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