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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">Dear Xavier<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">The difference between attribution of a contribution to a premature death and a ‘cause of death’ is that one is a statistical construct for a national population
and the other is medical cause of death. There is no common ground.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">1m premature deaths contributed to by things (in 51 categories) decided by a committee of experts is hardly the same as pointing to a murder weapon that killed
an individual.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">It may be that no one at all is killed by air pollution – it is just one of a number of contributions to medical conditions that one way or another, shorting one’s
life with complications and consequences. A person may die during an asthma attack, and there may be air pollution around at the time. Is that death caused by the air pollution, or the underlying condition of asthma? No one knows what causes asthma. The cleaner
the air in North America, the more common asthma there is. Is cleaner air contributing to the shortening of lives in North America? On the face of it, possibly.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">Why do very few children who have contact with farm animals develop asthma? Do farm animals extend lives?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">The problem is claims by organisations such as the WHO, again last week at the SE4ALL meeting in Lisbon, that “indoor air pollution kills 4.3m people per year”.
The people making the claim know full well that it is actually asserted that IAP
<i>has been attributed to be a contributor</i> to the shortening of 4.3m lives per year, not a ‘cause of death’ and they know that I know that they know. Yet they persist in this exaggerated claim.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">Why? What is it they cannot achieve with the truth alone?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">Regards<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">Crispin<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="FR">Crispin, Nikhil,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="FR"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="FR">The important question: is it likely that air pollution kills, or shortens lives if you prefer, of people living in cities?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="FR"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="FR">I don’t know if the debate over the terms « killing » or « shortening life » is very relevant.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="FR">When someone shoots a 80-year old man, who was maybe meant to live until 81 years old only, you could say the shooter is not a killer, merely a life-shortener. If the shooter shoots a 12-month-old baby who was meant to live
81 years old, you could also say he shortened the baby’s life by 80 years. The baby was meant to die one day anyways.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="FR">Should the shooter of the old man only get a small prison sentence? After all, he only took 1 year from the old man’s life, maybe he only took 6 months or 2 months.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="FR"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="FR">Let’s admit that yes, life is dangerous and full of uncertainties, and many factors have an impact on human’s health. But let’s admit we would rather limitate the impact air pollution has on human health. How likely is it
that indoor air pollution has a large contribution to human deaths? Outdoor air pollution?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="FR"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="FR">Best,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="FR"><br>
Xavier</span><span lang="FR" style="font-size:11.0pt;font-family:"Calibri",sans-serif"><o:p></o:p></span></p>
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