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    Mark,<br>
    <br>
    on a logarithmic scale how many times can you make a 30% change?<br>
    <br>
    i.e., is there only hydrogen ion activity over <0.4points of the
    pH scale or are you saying something different?<br>
    <br>
    regards,<br>
    Ronald von pHneutralOberbayern<br>
    <br>
    <br>
    <div class="moz-cite-prefix">On 05.07.2013 07:41, Paul Olivier
      wrote:<br>
    </div>
    <blockquote
cite="mid:CAOreFvZt4mduEVArYjX2X+jkTYSBsphxP=s7tSB7qpkr3rr27A@mail.gmail.com"
      type="cite">
      <div dir="ltr">
        <div>
          <div>Mark,<br>
            <br>
          </div>
          Thanks so much for your contribution here.<br>
        </div>
        <div>We are in full agreement on this point.<br>
        </div>
        <div><br>
        </div>
        Paul Olivier<br>
      </div>
      <div class="gmail_extra"><br>
        <br>
        <div class="gmail_quote">
          On Fri, Jul 5, 2013 at 12:21 PM, Mark Bigland-Pritchard / Low
          Energy Design Ltd <span dir="ltr"><<a
              moz-do-not-send="true"
              href="mailto:mark@lowenergydesign.com" target="_blank">mark@lowenergydesign.com</a>></span>
          wrote:<br>
          <blockquote class="gmail_quote" style="margin:0 0 0
            .8ex;border-left:1px #ccc solid;padding-left:1ex">
            <div text="#000000" bgcolor="#FFFFFF"> I wouldn't normally
              want to post off-topic, but I think it is necessary that
              an error be corrected before this thread is put to sleep.<br>
              <br>
              It is scientifically accurate to say that the acidity of
              the oceans has increased.<br>
              <br>
              It is well documented that the average pH of the oceans
              has decreased by about 0.1.  Because pH is a logarithmic
              scale, this actually means a 30% increase in the hydrogen
              ion activity.  In other words, the acidity has increased
              by 30%.  This is basic chemistry, not "nonsense".  (The
              fact that carbon dioxide, when dissolved in water, forms
              carbonic acid, is also basic chemistry.)<br>
              <br>
              But yes the oceans are alkaline.  The shift in pH is from
              about 8.2 to about 8.1.  (Less alkaline = more acidic,
              wherever you are on the pH scale.)  People who have
              dedicated their lives to studying oceanic ecosystems are
              saying that even this ostensibly small drop in pH is
              impacting on crustacea, corals, calcifying microorganisms
              and other highly-calcium-dependent species - and therefore
              also on the whole ecosystems which depend on them for food
              or shelter.  (And remember, humans are at the top of the
              food chain in many of those ecosystems.)  That is why this
              is a serious matter.<span class="HOEnZb"><font
                  color="#888888"><br>
                  <br>
                  mark</font></span>
              <div>
                <div class="h5"><br>
                  <br>
                  <br>
                  <br>
                  <div>On 2013:07:04 21:14, Crispin Pemberton-Pigott
                    wrote:<br>
                  </div>
                </div>
              </div>
              <blockquote type="cite">
                <div>
                  <div class="h5">
                    <div>
                      <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Paul

                          O</span></p>
                      <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
                      <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">The

                          point Andrew was making when asking that the
                          conversation about climate be moved to another
                          site was to prevent that sort of nonsense
                          cluttering up this site which is a domestic
                          stoves discussion list.</span></p>
                      <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
                      <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">When

                          someone repeats a claims that the ‘oceans have
                          increased in acidity by one third’ and
                          implying it is because of man-made CO2
                          emissions from fossil fuels it deserves to be
                          labelled exactly that o nonsense. The oceans
                          are alkaline, not acidic and cannot ‘increase
                          in acidity by one third’ – whatever that
                          means. </span></p>
                      <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
                      <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">I
                          wrote to you privately because the discussion
                          does not belong here.</span></p>
                      <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
                      <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Please

                          accept the moderator’s view.</span></p>
                      <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Thanks</span></p>
                      <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Crispin

                        </span></p>
                      <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
                      <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
                      <p class="MsoNormal"><b><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif""
                            lang="EN-US">From:</span></b><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif""
                          lang="EN-US"> Stoves [<a
                            moz-do-not-send="true"
                            href="mailto:stoves-bounces@lists.bioenergylists.org"
                            target="_blank">mailto:stoves-bounces@lists.bioenergylists.org</a>]
                          <b>On Behalf Of </b>Paul Olivier<br>
                          <b>Sent:</b> Thursday, July 04, 2013 8:09 PM<br>
                          <b>To:</b> Discussion of biomass cooking
                          stoves<br>
                          <b>Subject:</b> [Stoves] on ocean
                          acidification</span></p>
                      <p class="MsoNormal"> </p>
                      <div>
                        <div>
                          <p class="MsoNormal">In a previous email I had
                            cited an article by Mark Bittman concerning
                            ocean acidification. Crispin responded to me
                            off-list and said:</p>
                        </div>
                        <p class="MsoNormal"><br clear="all">
                        </p>
                        <div>
                          <div>
                            <p class="MsoNormal"><i><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">That

                                  was the most outrageous set of
                                  nonsense on oceans and CO2 I have
                                  seem. What rubbish. </span></i></p>
                            <p class="MsoNormal"><i><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> The

                                  oceans are not acidic.</span></i></p>
                            <p class="MsoNormal"><i><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">CO2

                                  absorbed by water turns about 1% into
                                  carbonic acid, a fragile composition
                                  with a short lifespan.</span></i></p>
                            <p class="MsoNormal"><i><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">If

                                  the oceans were to absorb many many
                                  gigatons of CO2 it would become
                                  slightly less alkaline.</span></i></p>
                            <p class="MsoNormal"><i><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">It

                                  seems that Bittman does not even know
                                  the most basic facts about oceans and
                                  just attributes everything he sees to
                                  ‘AGW’. His writings are not helping
                                  the reputation of science. His view
                                  are not informing the discussion. His
                                  conclusions are worthy of ridicule.</span></i></p>
                            <p class="MsoNormal"><i><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Fish

                                  and mollusk populations rise and fall
                                  with the food supply. When the PDO
                                  changed in 1976 there were also large
                                  population shifts. It has shifted
                                  again. The shift is 100% natural and
                                  has nothing to do with human fuel use.</span></i></p>
                            <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span>I
                              replied to his email as follows:</p>
                            <p class="MsoNormal"><i>Please do not label
                                everything that you disagree with as
                                rubbish, nonsense, or as worthy of
                                ridicule. It is hard to conduct a debate
                                when you use such language.<br>
                                <br>
                                I would like to draw your attention to
                                the following:<br>
                                <a moz-do-not-send="true"
                                  href="http://www.sightline.org/research/northwest-ocean-acidification/"
                                  target="_blank">http://www.sightline.org/research/northwest-ocean-acidification/</a><br>
                                <a moz-do-not-send="true"
href="http://www.sightline.org/wp-content/uploads/downloads/2012/02/OA-primer1.pdf"
                                  target="_blank">http://www.sightline.org/wp-content/uploads/downloads/2012/02/OA-primer1.pdf</a><br>
                                <a moz-do-not-send="true"
                                  href="http://en.wikipedia.org/wiki/Ocean_acidification"
                                  target="_blank">http://en.wikipedia.org/wiki/Ocean_acidification</a></i></p>
                            <div>
                              <p class="MsoNormal"
                                style="margin-bottom:12.0pt"><i><a
                                    moz-do-not-send="true"
                                    href="http://www.pmel.noaa.gov/co2/story/Ocean+Acidification"
                                    target="_blank">http://www.pmel.noaa.gov/co2/story/Ocean+Acidification</a><br>
                                  <a moz-do-not-send="true"
                                    href="http://www.pmel.noaa.gov/co2/story/What+is+Ocean+Acidification%3F"
                                    target="_blank">http://www.pmel.noaa.gov/co2/story/What+is+Ocean+Acidification%3F</a></i></p>
                            </div>
                            <p class="MsoNormal"><i>I would like to ask
                                the members of this stove list: why do
                                we go about designing stoves? Are we
                                only concerned about poor people in
                                developing countries who sit around
                                dirty campfires? Or do we want to design
                                stoves that at the same time address
                                important issues such as climate change,
                                global warming and ocean acidification?
                                <br>
                              </i><br>
                              Thanks.</p>
                          </div>
                          <div>
                            <p class="MsoNormal">Paul</p>
                          </div>
                          <div>
                            <p class="MsoNormal">---<br>
                              Paul A. Olivier PhD<br>
                              26/5 Phu Dong Thien Vuong<br>
                              Dalat<br>
                              Vietnam<br>
                              <br>
                              Louisiana telephone: 1-337-447-4124 (rings
                              Vietnam)<br>
                              Mobile: 090-694-1573 (in Vietnam)<br>
                              Skype address: Xpolivier<br>
                              <a moz-do-not-send="true"
                                href="http://www.esrla.com/"
                                target="_blank">http://www.esrla.com/</a>
                            </p>
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                  <pre>_______________________________________________
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</pre>
                </div>
              </blockquote>
              <br>
            </div>
            <br>
            _______________________________________________<br>
            Stoves mailing list<br>
            <br>
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            <br>
            <br>
          </blockquote>
        </div>
        <br>
        <br clear="all">
        <br>
        -- <br>
        Paul A. Olivier PhD<br>
        26/5 Phu Dong Thien Vuong<br>
        Dalat<br>
        Vietnam<br>
        <br>
        Louisiana telephone: 1-337-447-4124 (rings Vietnam)<br>
        Mobile: 090-694-1573 (in Vietnam)<br>
        Skype address: Xpolivier<br>
        <a moz-do-not-send="true" href="http://www.esrla.com/"
          target="_blank">http://www.esrla.com/</a>
      </div>
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      <br>
      <pre wrap="">_______________________________________________
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</pre>
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