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<p class="MsoNormal">Thanks, Marc-Antoine, for your keen interest in ensuring the health benefits of adopting clean cooking technologies. As you can imagine, this is of very high priority here at the Alliance. Our aim is to ensure the promotion of cleaner
cooking technologies, i.e. the cleanest possible technologies accessible and available for different customer segments. In addition, since the long term goal is universal adoption of truly ‘clean’ cooking, we are committed and working with partners to ensure
that the cleanest possible technologies are developed for all fuels currently in use.
<br>
We are also committed to ensuring that people can shift to cleaner and cleaner technologies and fuels, by working with a wide range of our partners to facilitate increased access and affordability.
<br>
<br>
As you are aware, there is even a wide variability of performance associated with the range of rocket stoves available. Indeed, HAPIT offers different performance scenarios to reflect the range of options in the market (as well as aspirational performance),
and the Alliance’s work will strive to cover the range of options available. In any case, I will leave it to Kirk and his team to reply about the HAPIT-specific questions in more detail....
<br>
<br>
<span style="color:#1F497D">Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Sumi<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Sumi Mehta, MPH, PhD<br>
Director of Research and Evaluation<br>
1750 Pennsylvania Avenue, NW, Suite 300<br>
Washington DC 20006<br>
tel: +1 202-787-5642 <br>
</span><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><a href="mailto:smehta@cleancookstoves.org"><span style="font-size:10.0pt;color:#0563C1">smehta@cleancookstoves.org</span></a><br>
<a href="http://www.cleancookstoves.org/" target="_blank"><span style="font-size:10.0pt;color:#0563C1">www.cleancookstoves.org</span></a></span><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal" style="margin-left:.5in">From: Marc-Antoine Pare <<a href="mailto:marcpare0@gmail.com">marcpare0@gmail.com</a>><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in">Date: September 3, 2014, 2:57:50 AM EDT<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in">To: Discussion of biomass cooking stoves <<a href="mailto:stoves@lists.bioenergylists.org"> stoves@lists.bioenergylists.org</a>><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in">Subject: [Stoves] health impact?<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:.5in">
Reply-To: Discussion of biomass cooking stoves <<a href="mailto:stoves@lists.bioenergylists.org"> stoves@lists.bioenergylists.org</a>><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in">Hi everyone,<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in"> <o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in">A big confession: having tinkered with stoves for years, I never actually looked into the numbers of stove health impacts. I'm trying to fix that, and I hope you can help!<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in"> <o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in">I mean, yes, I can wave my hands about PM and CO and four million deaths!<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in"> <o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in">But how many deaths (or DALYs) do you avert per stove? Or per 10,000 stoves? Or per 100,000,000?<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in"> <o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in">I thought it would be an easy question to answer, but it's turning out to be quite tricky to even ballpark.<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in"> <o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in">Here is one interesting source. This is from the very recent webinar on Kirk Smith's HAPIT tool.
<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in"> <o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in"><a href="http://www.cleancookstoves.org/resources_files/hapit-results-rwanda.pdf">http://www.cleancookstoves.org/resources_files/hapit-results-rwanda.pdf</a>
<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in"> <o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in">This report considers 25,000 households.<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in">If you provide all of those households a rocket stove, you save only 0.75 lives per year.<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in"> <o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in">If you take the GACC's target 100,000,000 households, that would mean<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in"> <o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in">0.75/25000*100000000 = 3,000 lives saved worldwide annually.<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in"> <o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in">What am I missing there? This seems so small.<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in"> <o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in">Some speculation:<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in"> <o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in">Kirk Smith mentions in the HAPIT webinar that even a small amount of PM2.5 is still harmful. Perhaps biomass stoves just don't get the number low enough?<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in"> <o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in">I think this would fit with the chart in the linked PDF that shows that stoves only reduce deaths by <5% for indoor air pollution. A few times in the HAPIT webinar, they mention "a lot of lives are still left on
the table."<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in"> <o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in">This also seems to agree with something I found in Christian L'Orange's dissertation:<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in"><a href="http://digitool.library.colostate.edu/exlibris/dtl/d3_1/apache_media/L2V4bGlicmlzL2R0bC9kM18xL2FwYWNoZV9tZWRpYS8yNDYyOTQ=.pdf">http://digitool.library.colostate.edu///exlibris/dtl/d3_1/apache_media/L2V4bGlicmlzL2R0bC9kM18xL2FwYWNoZV9tZWRpYS8yNDYyOTQ=.pdf</a>
<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in"> <o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in">Figure 33 shows that Envirofit G3300 stoves only have a 3% (or so) impact on "Adjusted Relative Risk" (of death)<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in"> <o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in"> <o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in">Please do not worry about hurting my feelings in correcting these numbers. Am I thinking about this the wrong way around? Have I punched the numbers in incorrectly?
<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in"> <o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in">Also, I would be very interested to read more good papers on health impacts for stoves. It is all really quite interesting work. I feel bad that I didn't look at it sooner.<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:.5in">
Best,<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:.5in">
Marc Paré<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in">_______________________________________________<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:.5in">for more Biomass Cooking Stoves, News and Information see our web site:<o:p></o:p></p>
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