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On Thu, Aug 16, 2007 at 10:27:28AM -0400, hgraf wrote:
> http://www.iht.com/articles/2007/08/16/news/australia.php

Note how one of the theories is based on the fact that there is the
fence there, IE, it's the two different landscapes side by side that
cause the effect.

Also what it says about sustainable agricultural practices is
interesting. The researchers probably understand this, but I doubt the
environmental groups that will latch on to this study do... Organic
farming methods actually release far more aerosols into the air than
conventional methods as organic farming tends to be highly reliant on
the very destructive practice of tilling soil to keep pests and weeds
under control, releasing lots of dust into the air.

For that theory too you *may* be able to compare rainfall in forested
areas subject to forest fires. Of course, if that's true then forest
fires would be preventing rain through the aerosol effect of the smoke
released provoking more forest fires... One more possible reason to why
forest fires in most of BC tend to be naturally very large, burning
whole mountains worth of trees at once.

- -- 
http://petertodd.org
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