> Think of Mesopotamia. When it was the cradle of civilization it was the 
> fertile 
> crescent. Now it is mostly desert (that is it is Iraq). How  did this
happen? 

I guess Bush has the answer to that :-)

> Over time the people living in the region degraded  the environment (cut
down 
> the trees - always a bad idea). But  it took quite a long time.  In the
Easter

The people in Scotland also cut down most of the trees in order to have more
room for sheep. Or so I learned. Yup, deforestation works without rats :-)

- klaus
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