So the Industrial revolution and all that followed has had no impact on the climate and we can just ignore it?
Oh mans climate-bashing activities go back way beyond then. However, it would rather spoil the narrative that climate change, if man made, started with the nasty machines in the C18th,
Neolithic man had a neat line in clearing forests for crops - by burning them. Thousands of square miles in a few centuries.
The Roman occupation of Britain saw a massive deforestation for building and fuel.
And famously (for history buffs) England had to start burning coal in the C16th as all the wood was being cut down for ships.
But, if it makes you feel better, carry on arguing over the cause - and ignore the fact I agreed we should be doing something. The thing is, if you remove the "man made" from the mix, you end up with quite a different list of things you could do. None of which has the potential to gouge the taxpayer quite as much.
I will lay money that one of the outcomes from Paris will be a shed load of advertising campaigns.
Incidentally, any archaeologist would tell you - for free - that climate change has always affected human habitation over the years. There are several sites in Britain where it's apparent the change in climate forced settlements to be abandoned (signs of piers and jetties in the middle of dried flood plains). But acknowledging that climate change has always been a risk for mankind rather weakens the apocalypse some would have us believe in.