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</o:shapelayout></xml><![endif]--></head><body bgcolor=white lang=EN-CA link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Dear Ron<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'>>…wouldn't a reduction in the amount of _charcoal_ used also reduce the total system effects? I have to assume that the people burning charcoal have decided to do so. If I can reduce the amount of charcoal they are burning, they might even have enough extra cash to buy a tree seedling.<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'>This was looked at very carefully by Peter Coughlin who makes the POCA, the technology underlying the recent capture of a major award. The benefits of saving even a small amount of charcoal, say 15%, are quite large in terms of the current practises and the total emissions. It certainly pays (in carbon trade) better to save charcoal than to save wood.<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'>>One interesting thing about aluminum is that its heat transfer capabilities make it surprising hard to melt by a very small fire. <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'>Same for copper. Even using a cutting torch it is difficult to melt a block of copper. Steel can be melted with char if you have a fan (as Philips found out!) so it is more about heat balance and flow than the material.<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'>>I'm also not aware of the net "greenhouse emissions" of turning out the steel for a stove vs. the aluminum for a stove, but if you check that out there might be another factor to add into your total equation of life.<br><br></span><span style='color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>A consideration here is that once produced, aluminum is easily recycled with a very low energy cost which is why roadside producers can turn out products with almost no equipment. It is not only the life cycle of the product that should be considered by the life cycle of the material itself.<o:p></o:p></span></p><p class=MsoNormal><br><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Crispin von Suchenachgutenschweißer<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal>regards,<br><br>Ronald von Kannschlechtschweißen<br><br><span style='color:windowtext'><o:p></o:p></span></p></div></body></html>