Andy Dingley wrote:
On 27 Oct, 11:40, "Dave Liquorice"
wrote:

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.

Black rocks don't burn well, which is why coal wasn't seriously used
or mined until the Tudor period. You need to have a fireplace and
fairly well-designed chimney to burn coal. Even the first steam
locomotives couldn't burn coal, they had to use coke.

Our use of coal for heat and power really is a very modern invention:
150 years for widepsread power, 100 for electricity. Be afraid. We
broke this place, and we did it very quickly.

So why did the Thames freeze over 200 years ago then?


--
Dave - The Medway Handyman
www.medwayhandyman.co.uk