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.


So ... if they were not releasing fossil carbon, didn't have power stations,
cars, industry belching out pollution etc etc then what made the earth warm
up and bring the ice age to an end? And if the earth can heat up then why
can't it now and if so there's nothing that we can do to stop it ... or for
it to return to another ice age.