<div dir="ltr">Sujoy: <br><br>This is a cup in a firestorm, if you understand what I mean by inverting metaphor. <br><br>The study was indeed linked to field use in Malawi, the same one associated with a rather ludicrous "health study". That apart, the NCSU research is about "climate change", not about cooking or health. (The health professors had already declared Philips stoves in Malawi as making no significant change. I am writing from memory.) <br><br>Why bother? All the talk about "household stoves warm the planet" is also cooked up "convenient facts". It is known for decades that depending on the type of biomass and stoves (in and outside households), there are warming aerosols (black carbon) and there are cooling aerosols (organic carbon) in different ratios. <br><br>I found this study very interesting because they did some follow-up lab studies to discover that "atmospheric aging" of emissions changes the relative ratio of warming v. cooling species. <br><br>So, in an academic sense, field testing of roughly a billion stoves (some people have more than one, and there are non-household users) will tell us if they warm or cool the earth. <br><br>That is the limit of my recollection of atmospheric chemistry on that. I don't think it matters a hoot if the professoriat finds that their findings are different from what "<span style="color:rgb(80,0,80)">researchers previously thought."</span><br><br>Especially as come to climate change, where I am guessing the net effect of biomass stoves on multi-decadal GMST change is zero. <div><br></div><div>I hope it surprises nobody that in a crude sense, the net effect of coal-fired power emissions on multi-decadal GMST change is also zero. Depends on what organic carbon and sulfate emission loads are. <br><br></div><div>The war against solid fuels is fought with convenient lies and academic factoids. <br><br>Nikhil</div><div><br><div class="gmail_extra">
<br><div class="gmail_quote">On Wed, Aug 16, 2017 at 2:00 AM, Sujoy Chaudhury <span dir="ltr"><<a href="mailto:sujoy.chaudhury@gmail.com" target="_blank">sujoy.chaudhury@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Dear Bruno<div><br></div><div>Thank you for the paper- Interesting to wood stove promoters. </div><div><br></div><div>But - <span style="color:rgb(51,51,51);font-family:Helvetica,sans-serif;font-size:10.5pt">"All of this is based on lab measurements, which is important to
note because previous studies have found that advanced stoves don't necessarily
work as well in the field as they do in the lab". </span></div><div><span style="color:rgb(51,51,51);font-family:Helvetica,sans-serif;font-size:10.5pt"><br></span></div><div><span style="color:rgb(51,51,51);font-family:Helvetica,sans-serif;font-size:10.5pt">Measurements from the field. anyone thinking about this ?</span></div><div><span style="color:rgb(51,51,51);font-family:Helvetica,sans-serif;font-size:10.5pt"><br></span></div><div><span style="color:rgb(51,51,51);font-family:Helvetica,sans-serif;font-size:10.5pt">Regards</span></div><span class="gmail-HOEnZb"><font color="#888888"><div><span style="color:rgb(51,51,51);font-family:Helvetica,sans-serif;font-size:10.5pt">Sujoy Chaudhury</span></div><div><span style="color:rgb(51,51,51);font-family:Helvetica,sans-serif;font-size:10.5pt">CSS</span></div><div><span style="color:rgb(51,51,51);font-family:Helvetica,sans-serif;font-size:10.5pt">Kolkata </span></div></font></span></div><div class="gmail_extra"><br><div class="gmail_quote"><div><div class="gmail-h5">On Wed, Aug 16, 2017 at 5:20 AM, Bruno M. <span dir="ltr"><<a href="mailto:brunom1@telenet.be" target="_blank">brunom1@telenet.be</a>></span> wrote:<br></div></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div><div class="gmail-h5">
<div bgcolor="#FFFFFF">
<p>I didn't saw this been posted here before:</p>
<p>Andrew Grieshop a researcher from North Carolina State
University,</p>
<p>found:<br>
</p>
<p><span>Advanced wood-burning stoves designed
for use in the developing world</span></p>
<p><span> can reduce air pollution more than
anticipated, because gaseous emissions from traditional wood
stoves</span></p>
<p><span> form more particulate matter in the
atmosphere than researchers previously thought.</span></p>
<p><br>
</p>
<p><a class="gmail-m_2284621488674870150m_-397999551864673565moz-txt-link-freetext" href="https://www.sciencedaily.com/releases/2017/08/170807112840.htm" target="_blank">https://www.sciencedaily.com/r<wbr>eleases/2017/08/170807112840.h<wbr>tm</a></p>
<p><br>
</p>
<p>Enjoy</p><span class="gmail-m_2284621488674870150HOEnZb"><font color="#888888">
<p>Bruno M.</p>
<p>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<wbr>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<wbr>~~ </p></font></span></div></div></div></blockquote></div></div></blockquote></div></div></div></div>