<p>To add to the discussion... Greenland didn't have ice in 900ad. Hence the name Greenland. I think its always fluctuating, but our emissions do have an impact on making the fluctuations more extreme.</p>
<div class="gmail_quote">Op 29 jul. 2012 02:11 schreef "Richard Stallman" <<a href="mailto:rms@gnu.org">rms@gnu.org</a>> het volgende:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
I would be careful with such argument. It is true that the death-rate<br>
increased during the heat wave you speak about, but anybody could<br>
explain to you we had summer heat waves long before the human<br>
industrialization could cause global warming.<br>
<br>
This is the usual argument of global heatintg deniers, and the<br>
rebuttal is also well known.<br>
<br>
Every extreme weather event that occurs COULD have happened in the<br>
past. However, the effect of global heating is to make such events,<br>
which used to be very rare, increasingly frequent. Even worse events,<br>
that used to be so unlikely we never saw them, become merely rare,<br>
and then increasingly frequent.<br>
<br>
It is hard to compare deaths between 1636 and 2003. (Was the heat<br>
wave really 9 years ago? It seems more recent in my memory.) I think<br>
most people in France were malnourished in the 17th century; I have<br>
read that was so in the 18th century and I suppose it was true before.<br>
Maybe they died from crop failure.<br>
<br>
Are there any temperature records from 1636? I don't know when a<br>
thermometer was first invented. Do we have any idea how hot it got<br>
then, to compare with the recent heat wave?<br>
<br>
Anyway, if this sort of heatwave back then happened only once every<br>
400 years, it isn't so rare any more.<br>
<br>
I believe the impacts on developing countries would be much more<br>
significant. They are much more vulnerable to the potable water problems<br>
on the short-term, and desertification is putting a lot of Saharan<br>
African countries in a very difficult situation for example.<br>
<br>
I agree. (The heat wave in France was pertinent to the discussion at<br>
the time.)<br>
<br>
--<br>
Dr Richard Stallman<br>
President, Free Software Foundation<br>
51 Franklin St<br>
Boston MA 02110<br>
USA<br>
<a href="http://www.fsf.org" target="_blank">www.fsf.org</a> <a href="http://www.gnu.org" target="_blank">www.gnu.org</a><br>
Skype: No way! That's nonfree (freedom-denying) software.<br>
Use Ekiga or an ordinary phone call<br>
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