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<DIV><FONT size=2 face=Arial>Nicely said Dean.</FONT></DIV>
<DIV><FONT size=2 face=Arial>As some one who lives on a calcareous sand pile 6
feet high on a coral ridge in the middle of the Pacific Ocean,.</FONT></DIV>
<DIV><FONT size=2 face=Arial>ocean acidification is a critical concern and its
mention on the stove list is not totally out of scope. It is
pertinent</FONT></DIV>
<DIV><FONT size=2 face=Arial>and relates, however we might want to primarily
focus on the stoves here and there by solve the problem any way.</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>Michael N Trevor</FONT></DIV>
<DIV><FONT size=2 face=Arial>Majuro</FONT></DIV>
<DIV><FONT size=2 face=Arial>Marshall Islands </FONT><BR></DIV>
<DIV style="FONT: 10pt Tahoma">
<DIV style="BACKGROUND: #f5f5f5">
<DIV style="font-color: black"><B>From:</B> <A
title="mailto:deankstill@gmail.com
CTRL + Click to follow link"
href="mailto:deankstill@gmail.com">Dean Still</A> </DIV>
<DIV><B>Sent:</B> Saturday, July 06, 2013 8:38 AM</DIV>
<DIV><B>To:</B> <A
title="mailto:stoves@lists.bioenergylists.org
CTRL + Click to follow link"
href="mailto:stoves@lists.bioenergylists.org">Discussion of biomass cooking
stoves</A> </DIV>
<DIV><B>Subject:</B> Re: [Stoves] on ocean acidification</DIV></DIV></DIV>
<DIV><BR></DIV>Hi All,
<DIV><BR></DIV>
<DIV>In recent discussions making stoves that reduce climate change as well as
health problems has been a focus. I'm not an expert but to me that means
investigating how stoves can burn as cleanly as possible. Making as close to
zero amounts of CO and PM while cooking food as effectively as possible: making
cooks happy as well. If the stove makes charcoal that will be buried it should
be super clean when burning/cooking.</DIV>
<DIV><BR></DIV>
<DIV>We're getting closer. Stoves with chimneys can help a lot to protect health
as long as the outside air stays below WHO guidelines but adding climate change
means that we want to see only carbon neutral CO2 coming out of the
chimney. </DIV>
<DIV><BR></DIV>
<DIV>I think that in the next few years biomass stoves that get close to this
degree of clean burning will be for sale, available in the millions and at
market prices. It's great that the Global Alliance is pushing this '
technological revolution'. And as a concerned Earthling, I want to sincerely
thank all of the inventors and all concerned who are helping the plants and
animals, the humans, on our planet.</DIV>
<DIV><BR></DIV>
<DIV>Thanks to Jacob, Tom, N. Nurhuda, Ron, Fred, Peter, Ben, Paul, Tom, Larry,
Ranyee, Leslie, John, Crispin, and everyone.</DIV>
<DIV><BR></DIV>
<DIV>THANK YOU!!!,</DIV>
<DIV><BR></DIV>
<DIV>Dean<BR><BR>
<DIV class=gmail_quote>On Fri, Jul 5, 2013 at 10:29 AM, Frank Shields <SPAN
dir=ltr><<A
title="mailto:frank@compostlab.com
CTRL + Click to follow link"
href="mailto:frank@compostlab.com"
target=_blank>frank@compostlab.com</A>></SPAN> wrote:<BR>
<BLOCKQUOTE
style="BORDER-LEFT: #ccc 1px solid; MARGIN: 0px 0px 0px 0.8ex; PADDING-LEFT: 1ex"
class=gmail_quote>This is a very good topic and related to Stoves to the point
of noting the<BR>difference of a measure of Biochar pH value and alkalinity
value. The pH is<BR>really not that important as many think it is. It's the
alkalinity that is<BR>important. Having a water with a pH of 8.3 takes little
acid to lower the pH<BR>but toss in a chunk of lime and the pH is still 8.3
but you will need to add<BR>acid until all the lime is dissolved before the pH
goes down. So pH is just<BR>a reading. Alkalinity (or neutralizing value) is a
measure of the amount of<BR>buffering holding that pH. We report this as CaCO3
equivalent units so it<BR>can be compared to adding limestone to a soil. We
boil a Biochar sample in<BR>100 mls of 0.5N HCl to dissolve all the carbonates
and oxides in the sample<BR>then back titrate using NaOH to determine the
amount buffering (or<BR>neutralizing value) the sample has. Much more
useful.<BR><BR>Frank<BR><BR><BR>Thanks<BR><BR>Frank Shields<BR><BR>BioChar
Division<BR>Control Laboratories, Inc.<BR>42 Hangar Way<BR>Watsonville, CE
95076<BR><BR><A href="tel:%28831%29%20724-5422"
value="+18317245422">(831) 724-5422</A> tel<BR>(81) 724-3188 fax<BR><A
href="mailto:frank@biocharlab.com">frank@biocharlab.com</A><BR><A
href="http://www.controllabs.com"
target=_blank>www.controllabs.com</A><BR><BR><BR><BR><BR><BR>-----Original
Message-----<BR>From: Stoves [mailto:<A
href="mailto:stoves-bounces@lists.bioenergylists.org">stoves-bounces@lists.bioenergylists.org</A>]
On Behalf Of<BR><A
href="mailto:ajheggie@gmail.com">ajheggie@gmail.com</A><BR>Sent: Thursday,
July 04, 2013 11:47 PM<BR>To: Discussion of biomass cooking stoves<BR>Subject:
Re: [Stoves] on ocean acidification<BR><BR>On Thu, 04 Jul 2013 23:21:20
-0600,Mark Bigland-Pritchard / Low Energy<BR>Design Ltd <<A
href="mailto:mark@lowenergydesign.com">mark@lowenergydesign.com</A>>
wrote:<BR><BR>>I wouldn't normally want to post off-topic, but I think it
is necessary<BR>>that an error be corrected before this thread is put to
sleep.<BR><BR>Mark I'm happy with your correction explaining pH. As we
generally do use pH<BR>to denote acidity rather than hydrogen ions I think it
is misleading to then<BR>say a 30% increase in hydrogen ion activity equates
to a 30% change in<BR>acidity.<BR><BR>I think change in ocean ecology due to
this small change in pH is a very<BR>serious concern but please all of you
take the discussion elsewhere and<BR>stick to stove
issues.<BR><BR>AJH<BR><BR>_______________________________________________<BR>Stoves
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