The one thing that absolutely, positively, keeps me a denier of us being the primary cause of Global warming is one very simple fact.
Someone please... please... explain how I'm wrong.
Carbon cycle models vary at having us output from 5.5 GtC to 8 GtC of carbon in the form of CO2.
All carbon cycle models maintain an equilibrium of about 50:1 carbon in the ocean to the atmosphere. The model out of wiki:
OK... A little insight to this model and any other. There is about 2 GtC of carbon per ppm. The above model represents about 380 ppm at 750 GtC. Close enough for this debate to use a simple 2 GtC per ppm. That means pre industrialized carbon would be about 560 GtC for 280 ppm. If you must be more precise, use 552.6 GtC. I don't care. What ever realistic value from whatever model you pick, my point is valid.
OK. Now since the equilibrium is about 50:1 (51 parts) for simplicity, I will use 49:1 (50 parts.) At the high end of models, we have 8 GtC annually of anthropogenic carbon. At the 49:1 ratio, the oceans would absorb 7.84 GtC and 0.16 GtC would remain in the atmosphere. At that rate, it would take 1250 years. Yes 1250 years! It would take that long with all other conditions equal, for man made CO2 to increase the atmospheric CO2 from 280 ppm to 380 ppm.
Now... 2004 (model) - 1700 (postindustrial) = 304 years. Not only are we a factor of four short, the rate of 8 GtC per year is less in past years.
Please. Tell me how we are the cause of more CO2 in the atmosphere.
For those with an understanding of Henry’s Law, and math, consider this: