On Tue, 27 Oct 2009 11:14:56 -0000, Ash wrote:

I wonder if the cavemen in the south of England 10,000 years ago knew
that their little log fires were melting the glaciers?

Except they wern't, their log fires were not releasing fossil carbon.
Now if they had found some black rocks and also discovered they
burn't well that would be a different matter.

--
Cheers
Dave.