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<DIV class=OutlookMessageHeader dir=ltr align=left><FONT face=Tahoma
size=2>-----Original Message-----<BR><B>From:</B>
greenbuilding-bounces@lists.bioenergylists.org
[mailto:greenbuilding-bounces@lists.bioenergylists.org]<B>On Behalf Of
</B>Reuben Deumling<BR></FONT></DIV>
<DIV class=gmail_quote>
<DIV><FONT face=Arial color=#0000ff size=2></FONT><BR>I'm with Corwyn. This
sounds fishy. <SPAN class=265001422-01112011><FONT face=Arial
color=#0000ff size=2> </FONT></SPAN></DIV>
<DIV><SPAN class=265001422-01112011></SPAN> </DIV>
<DIV><SPAN class=265001422-01112011><FONT face=Arial color=#0000ff size=2>And
it probably is.</FONT></SPAN></DIV>
<DIV><SPAN class=265001422-01112011></SPAN> </DIV>
<DIV><SPAN class=265001422-01112011><FONT face=Arial color=#0000ff size=2>It's
not that new either, but it always seems to be .connected to, and dependant
on, something else.</FONT> <FONT face=Arial color=#0000ff size=2> And
that something else is not without its problems. </FONT></SPAN></DIV>
<DIV><SPAN class=265001422-01112011><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=265001422-01112011><FONT face=Arial color=#0000ff
size=2>About ten years ago there was a flurry of activityin the "methane
economy" at UNSW. It was connected with the solar tower project at
Mildura NSW but nothing came of it and I don't think there is much progress
with the tower either. I recall the objective was solar-powered hydrogen
production rather than converting the CO2. The value of methane is that it can
be burned by ordinary people using existing infrstructure and makes a lot more
sense than the "hydrogen economy".</FONT></SPAN></DIV>
<DIV><SPAN class=265001422-01112011><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=265001422-01112011><FONT face=Arial color=#0000ff size=2>It
could be that there isn't much effort to move to the methane economy because
it may come to us with no effort. Methane is a far more problematic
greenhouse gas than CO2 and one of the greatest threats to humanity is the
squillions of cubic metres of it under the tundra just waiting to get out as
the permafrost melts under climate change. </FONT></SPAN></DIV>
<DIV><SPAN class=265001422-01112011><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=265001422-01112011><FONT face=Arial color=#0000ff size=2>On
the other hand is CO2 conversion. One thing for certain is that CO2
conversion has a lot more potential than the loony carbon
sequestration fairyland so beloved of our politicians but it seems mostly
Popular Mechanics-type stuff - like re-engineering the atmosphere of Mars
so that we can all fly off and live there happily ever
after,</FONT></SPAN></DIV>
<DIV><SPAN class=265001422-01112011><FONT face=Arial color=#0000ff
size=2></FONT> </DIV>
<DIV><FONT face=Arial color=#0000ff size=2></FONT><BR>
<P><FONT size=2>Nick Pyner<BR><BR>Dee Why NSW
</FONT></P></SPAN></DIV></DIV></BLOCKQUOTE></BODY></HTML>