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permaculture - Re: [permaculture] Healing Hawk doesn't do enough observation

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  • From: "Margaret & Steven Eisenhauer" <eisenhauerdesign@earthlink.net>
  • To: "'permaculture'" <permaculture@lists.ibiblio.org>
  • Subject: Re: [permaculture] Healing Hawk doesn't do enough observation
  • Date: Tue, 9 Oct 2007 21:26:14 -0400

With the best technology wood can be burned with a high efficiency. Most of
the air pollution you speak of from wood burning is the creosote that occurs
with incomplete combustion. The use of high temperature refractory
materials - which occur naturally in nature (kaolin clays, china clays - low
in sodium, iron and assorted other fluxes) with correct draft(enough oxygen)
causes the complete burning of the pryolizyed gases (tars) you see emitted
from low efficiency wood burning that is the Smokey pollution you speak of.

In this case technology fills the gap between an average camp fire that
sends incomplete combusted tarry substances into the air and the clean
burning high temperature conditions found in catalytic converters or the
refractory chambers of Russian masonry stoves or wood boilers that have
proper combustion chambers.
Is this the difference between a sharp knife and a dull mind?

eisenhauerdesign@earthlink.net



-----Original Message-----
From: permaculture-bounces@lists.ibiblio.org
[mailto:permaculture-bounces@lists.ibiblio.org] On Behalf Of Healing Hawk
Sent: Monday, October 08, 2007 9:04 PM
To: 'permaculture'
Subject: Re: [permaculture] Healing Hawk doesn't do enough observation

Again, I apologize. I was wrong about wood burning contributing to global
warming. It contributes to air pollution, not to global warming.

Air quality issues are why Holmgren talks about training firewood users,
designing better stoves, and using sustainably produced charcoal instead of
wood.

But I am totally wrong about greenhouse gasses, and I admit it.

That part of the carbon cycle is a wash. It's going to happen if a tree
does anything but continuing to grow, keeping its carbon sequestered. For
my own ethical reasons that I'm not going to push, now that I know what they
are, I'm not going to use wood to heat or cook, but it sounds like a good
idea to do something positive about global warming by replacing fossil
fuels, and if the air quality issues are mitigated by users it sounds to me
like it's environmentally groovy.

Tommy Tolson
Austin, TX

-----Original Message-----
From: permaculture-bounces@lists.ibiblio.org
[mailto:permaculture-bounces@lists.ibiblio.org] On Behalf Of Scott Pittman
Sent: Monday, October 08, 2007 6:54 PM
To: 'permaculture'
Subject: Re: [permaculture] Healing Hawk doesn't do enough observation

Thanks Toby and I second that emotion!!

Scott Pittman
Director
Permaculture Institute
www.permaculture.org

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