@jft2,
First of all, you're ignoring the cycles of warming and cooling which have been on-going for many thousands of years, and which have been just recently identified. Prior to the so-called "industrial revolution," people still relied on fire as their source of heat, for cooking and for industrial processes such as ore smelting and metallurgy. Just because it wasn't called "industrial" doesn't mean that it wasn't industrial.
In addition, you're assuming, without having provided any evidence, that CO2 is a leading indicator. How do you know that it's not a following indicator? Which is to say, how do you know that climate change is caused by the increase or CO2, rather than that climate change causes an increase in CO2.
Finally, to what extent is the increase in CO2 a product of deforestation? Have you calculated that in your ironclad determination?