<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=windows-1256">
<meta content="text/html; charset=Windows-1252">
<meta name="Generator" content="Microsoft Word 15 (filtered medium)">
<style>
<!--
@font-face
{font-family:"Cambria Math"}
@font-face
{font-family:Calibri}
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:"Times New Roman",serif}
h3
{margin-right:0in;
margin-left:0in;
font-size:13.5pt;
font-family:"Times New Roman",serif;
font-weight:bold}
a:link, span.MsoHyperlink
{color:blue;
text-decoration:underline}
a:visited, span.MsoHyperlinkFollowed
{color:purple;
text-decoration:underline}
span.Heading3Char
{font-weight:bold}
p.msonormal0, li.msonormal0, div.msonormal0
{margin-right:0in;
margin-left:0in;
font-size:12.0pt;
font-family:"Times New Roman",serif}
span.EmailStyle19
{font-family:"Calibri",sans-serif}
span.EmailStyle20
{font-family:"Calibri",sans-serif;
color:windowtext}
span.EmailStyle22
{font-family:"Calibri",sans-serif;
color:windowtext}
.MsoChpDefault
{font-size:10.0pt}
@page WordSection1
{margin:1.0in 1.0in 1.0in 1.0in}
div.WordSection1
{}
-->
</style>
</head>
<body lang="EN-US" link="blue" vlink="purple">
<div style="width:100%; font-size:initial; font-family:Calibri,'Slate Pro',sans-serif,sans-serif; color:rgb(31,73,125); text-align:initial; background-color:rgb(255,255,255)">
Dear Tom</div>
<div style="width:100%; font-size:initial; font-family:Calibri,'Slate Pro',sans-serif,sans-serif; color:rgb(31,73,125); text-align:initial; background-color:rgb(255,255,255)">
<br>
</div>
<div style="width:100%; font-size:initial; font-family:Calibri,'Slate Pro',sans-serif,sans-serif; color:rgb(31,73,125); text-align:initial; background-color:rgb(255,255,255)">
Isn't this the second time recently we have have an article of that 'quality' from that publication?</div>
<div style="width:100%; font-size:initial; font-family:Calibri,'Slate Pro',sans-serif,sans-serif; color:rgb(31,73,125); text-align:initial; background-color:rgb(255,255,255)">
<br>
</div>
<div style="width:100%; font-size:initial; font-family:Calibri,'Slate Pro',sans-serif,sans-serif; color:rgb(31,73,125); text-align:initial; background-color:rgb(255,255,255)">
ýThe general theme, that biomass is bad, treated biomass is better, is a common enough theme. Ho hum. Let each demonstrate his impact. </div>
<div style="width:100%; font-size:initial; font-family:Calibri,'Slate Pro',sans-serif,sans-serif; color:rgb(31,73,125); text-align:initial; background-color:rgb(255,255,255)">
<br>
</div>
<div style="width:100%; font-size:initial; font-family:Calibri,'Slate Pro',sans-serif,sans-serif; color:rgb(31,73,125); text-align:initial; background-color:rgb(255,255,255)">
Thanks</div>
<div style="width:100%; font-size:initial; font-family:Calibri,'Slate Pro',sans-serif,sans-serif; color:rgb(31,73,125); text-align:initial; background-color:rgb(255,255,255)">
Crispin </div>
<div style="width:100%; font-size:initial; font-family:Calibri,'Slate Pro',sans-serif,sans-serif; color:rgb(31,73,125); text-align:initial; background-color:rgb(255,255,255)">
<br>
</div>
<br>
<div>
<div class="WordSection1">
<p class="MsoNormal"><span style="font-size:11.0pt; font-family:"Calibri",sans-serif">Thank you Crispin. This was the kind of response I was hoping for. Exaggerated claims for health impacts can work both for and against biomass. </span></p>
<p class="MsoNormal"><span style="font-size:11.0pt; font-family:"Calibri",sans-serif"> </span></p>
<p class="MsoNormal"><span style="font-size:11.0pt; font-family:"Calibri",sans-serif">Tom</span></p>
<p class="MsoNormal"><a name="_MailEndCompose"><span style="font-size:11.0pt; font-family:"Calibri",sans-serif"> </span></a></p>
<span style=""></span>
<div>
<div style="border:none; border-top:solid #E1E1E1 1.0pt; padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b><span style="font-size:11.0pt; font-family:"Calibri",sans-serif">From:</span></b><span style="font-size:11.0pt; font-family:"Calibri",sans-serif"> Stoves [mailto:stoves-bounces@lists.bioenergylists.org]
<b>On Behalf Of </b>Crispin Pemberton-Pigott<br>
<b>Sent:</b> Saturday, March 11, 2017 9:33 AM<br>
<b>To:</b> Discussion of biomass cooking stoves <stoves@lists.bioenergylists.org><br>
<b>Subject:</b> Re: [Stoves] Kenya: To use or not to use fuelwood?</span></p>
</div>
</div>
<p class="MsoNormal"> </p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:11.0pt; font-family:"Calibri",sans-serif">Dear Stovers who want to have a clue about fuelwood combustion</span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:11.0pt; font-family:"Calibri",sans-serif"> </span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:11.0pt; font-family:"Calibri",sans-serif">This is a quote from the article linked below:</span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:11.0pt; font-family:"Calibri",sans-serif"> </span></p>
<p class="MsoNormal"><i><span lang="EN-CA" style="font-size:11.0pt; font-family:"Calibri",sans-serif">“At the household level, the key issues to consider are women’s and children’s health. Indeed, World Health Organisation studies show that one hour of using
firewood has the same health impacts as smoking a packet of cigarettes.”</span></i></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:11.0pt; font-family:"Calibri",sans-serif"> </span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:11.0pt; font-family:"Calibri",sans-serif">Of the many untrue things written in the article, this is probably the most outrageous, and that is really saying something.</span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:11.0pt; font-family:"Calibri",sans-serif"> </span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:11.0pt; font-family:"Calibri",sans-serif">The exposure one gets from a single cigarette is about 45 milligrams of PM2.5. The exposure in the worst home tested by Fresh Air in Kyrgyzstan in the past 4
months, which has terrible indoor air pollution in most low income homes, was 6000 micrograms per cubic metre. That is 20 times the exposure in Beijing on a bad ‘orange alert’ day. The exposure of a Kenyan cook is
<i>very</i> unlikely to be as high as that and I invite researchers to show that it is indeed as high as 6000 for one hour per day, on average.</span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:11.0pt; font-family:"Calibri",sans-serif"> </span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:11.0pt; font-family:"Calibri",sans-serif">Next, to be exposed to the same level of PM2.5 as a pack of 20 cigarettes (45 x 20 = 900 mg or 900,000 µg) one would have to inhale 150 cubic metres of such air
in an hour, or 150,000 litres. To do that in an hour would require about <a href="https://www.quora.com/How-much-volume-do-we-inhale-and-exhale-in-a-day">
6000</a> people!</span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:11.0pt; font-family:"Calibri",sans-serif"> </span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:11.0pt; font-family:"Calibri",sans-serif">As the health effect on a human from cigarette smoke is far worse than wood smoke, let’s call it 10,000 people to be safe. If an exaggeration of 10,000-fold is
not alarming enough, consider all the other unsupportable ‘climate’ assertions thrown left and right in this piece. Good grief why can’t people just promote their products on their merits without linking it to all the junk-topics-of-the-hour.</span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:11.0pt; font-family:"Calibri",sans-serif"> </span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:11.0pt; font-family:"Calibri",sans-serif">CleanStar’s product makes perfectly good sense and has a viable business plan. Sugar cane-based ethanol is a processed biofuel which is convenient and can be
burned very cleanly (test, don’t assume). It can be produced at scale and distributed at lower cost and at greater convenience than LPG. So….just do it.
</span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:11.0pt; font-family:"Calibri",sans-serif"> </span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:11.0pt; font-family:"Calibri",sans-serif">For those who don’t know Sagun, he was one of the judges in the TerraWatt Prize competition held by National Geographic a couple of years ago. The organiser of
that competition was so inspired by the experience he has moved to Mozambique to try to fill in a gap created when CleanStar moved to Kenya.
</span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:11.0pt; font-family:"Calibri",sans-serif"> </span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:11.0pt; font-family:"Calibri",sans-serif">May they both succeed.</span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:11.0pt; font-family:"Calibri",sans-serif"> </span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:11.0pt; font-family:"Calibri",sans-serif">Regards</span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:11.0pt; font-family:"Calibri",sans-serif">Crispin</span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:11.0pt; font-family:"Calibri",sans-serif"> </span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:11.0pt; font-family:"Calibri",sans-serif"> </span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:11.0pt; font-family:"Calibri",sans-serif"> </span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:11.0pt; font-family:"Calibri",sans-serif"> </span></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif">Using Efficient Methods to Manage Fuelwood is the Key</span></p>
<p><b><span style="font-family:"Calibri",sans-serif">By MILLICENT MWOLOLO</span></b><span style="font-family:"Calibri",sans-serif"></span></p>
<p><span style="font-family:"Calibri",sans-serif">To use or not to use fuelwood?-<a href="http://www.nation.co.ke/lifestyle/DN2/kenya-fuel-use-or-not-to-use-fuelwood/957860-3838414-ra9sgf/index.html">http://www.nation.co.ke/lifestyle/DN2/kenya-fuel-use-or-not-to-use-fuelwood/957860-3838414-ra9sgf/index.html</a></span></p>
<p><span style="font-family:"Calibri",sans-serif">In Summary</span></p>
<p><span style="font-family:"Calibri",sans-serif">Woodfuel releases carbon fumes into the air, adding to the carbon footprint and global warming. This has resulted in global climatic change, which is also being witnessed in Kenya in the form of higher temperatures,
prolonged droughts and dry spells.</span></p>
<p><span style="font-family:"Calibri",sans-serif">Though new to the local market, ethanol has gained wide use in Mozambique because it is clean and efficient, comparable to LPG. CleanStar Ventures has conducted market research primarily in urban households
that confirms the convenience and safety of ethanol. </span></p>
<p><span style="font-family:"Calibri",sans-serif">The Kenya Forestry Service (KFS), the Kenya Forestry Research Institute (Kefri), and ICRAF, among others, are working with farmers on managing trees for woodfuel. They promote the harvesting of mature stems,
growing of acacia trees for charcoal and managing trees in drylands.</span></p>
<p> </p>
</div>
</div>
</body>
</html>