Is the 2 to 5% of the total CO2 man puts into the atmosphere each year compiled onto itself? Like that's how we got to 380 ppm or 400 instead of pre-man 200 or whatever?
I think pre-industrial CO2 was around 250-280. Rocks? Chris?
I have read that CO2 can be sourced to its origins. I am so far from being a chemist that I start to lose consciousness when I read beyond the first pargraph of a scientists paper. It literally takes me days to read a single page. It gets tedious for me to get too in depth on that.
There is a wealth of information graphed at Global Warming Art . com.
With that said, though, The Earth goes though annual seasons and much longer cycles of climate variation. When the planet has warmed in the past, all manner of life from insects and plants to sloths and men have ranged into areas that have suddenly become warmer.
When they go there, since they are made out of carbon, they leave the physical parts of themselves where they fall. If the area stays warm, we and the rest become fertilizer and plants grow and feed animals and bugs. If it returns to being cold, what would have been fertilizer freezes and is "sequestered" until warming occurs.
Warming thaws the sequestered carbon and it joins with Oxygen and becomes CO2. During the summer right now, the thawing Siberian peat bogs emit more CO2 than the combined industry of the USA. This sounds incredible, but all of mankind working together can only muster around 3% of the total emitted. Peat bogs don't have smoke stacks, so they don't photograph as well. No sizzle.
Since Ice Ages began to cycle about 5 or 6 hundred thousand years ago, Warming has always caused the emission of greater amounts CO2 from its sequestered locations. The reverse effect has NEVER occurred, although, including what's happening today, scientists believe that there have been 3 instances in all of the 4 billion years of the planet's history during which CO2 rose before temperatures rose.
Some will point to these 3 instances and call it proof. I can't see it, but I could be wrong. As I said above, I am not a scientist. However, when every example across 4 billion years points to one conclusion and only 3 point to a different conclusion, I'll go with the every time conclusion.
This got to be too long. Sorry.