> 3. I have yet to see a single piece of evidence that conclusively links a warming climate with human released CO2.
Now, I don't know much about climate change either, so I googled it. The IPCC 2007 report outlined how the last 20,000 years of glacial record show a warm period very similar to the four warm periods in the 600,000 years prior. However, the CO₂, CH₄, and N₂O levels in the last 250 years have continued to rise beyond the normal peak, currently exceeding previous records by over a full range. So it's evident that something has been releasing unprecedented levels of greenhouse gases in the remarkably short time since the industrial revolution.
As for CO₂ in particular, it's merely the most direct byproduct of burning wood, coal, and oil. It's not the strongest greenhouse gas, it is the simplest causal link between the massive sustained burning of carbon and vast quantities of CO₂ spontaneously appearing. If you want to know more about how CO₂ is a greenhouse gas, I'll be happy to google that, too.
> currently exceeding previous records by over a full range.
What is a full range? does that have a number, is it a million kg per year? 5 million? And how does that compare to the actual atmosphere composition given that the atmosphere forms a 300 mile thick radius around the entire planet. Is the amount of greenhouse gases released by humans enough to make a dent in something large enough to form a 300 mile thick layer around the planet? Lets face it - you and climate science doesn't have the answers to these questions and until it does it will remain a hypothesis.
A full range is max-min. In the case of CO₂, the usual level is 200-250 ppm, with warm periods reaching as high as 300 ppm, giving a range of 100. The recent warm period of 10,000 years had it up to 280, and it reached 300 around 1900. The current level is 400 ppm.
The six gases in the atmosphere that appear above 60 ppm have a combined mass of about 14.85 g/mol. Removing 100 ppm of CO₂ would reduce the mass of the atmosphere by 1.23 g/mol, or 8%. To convert that to kg/year, we have to take 8% of the mass of the atmosphere, roughly 5.14E18 kg, and divide by 100 years.
So a range is 4 thousand million million kg per year, or 4000 short scale gigatons per year, and is absolutely able to make a bulge in the atmosphere.
edit: I re-calculated the mass of the atmosphere. assuming that CO₂=C+O₂. This time I got 14.3790 g/mol, where replacing 100 PPM of CO₂ with O₂ reduces the mass by 0.0012 g/mol or 0.008%. That would correspond to 4 gigatons per year, whereas current estimates are 40 gigatons per year.
I calculated the mass a third time, this time assuming nitrogen was molecular. This yields an atmospheric mass of 29.1 g/mol, of which CO₂ represents 604 ppm by mass, squaring with existing estimates. Then replacing 100 ppm of CO₂ with O₂ lowers the atmospheric mass by 1.2 mg/mol, or 4.1E-5, corresponding to a yearly added mass of 2.1 Gt.
Now, I don't know much about climate change either, so I googled it. The IPCC 2007 report outlined how the last 20,000 years of glacial record show a warm period very similar to the four warm periods in the 600,000 years prior. However, the CO₂, CH₄, and N₂O levels in the last 250 years have continued to rise beyond the normal peak, currently exceeding previous records by over a full range. So it's evident that something has been releasing unprecedented levels of greenhouse gases in the remarkably short time since the industrial revolution.
As for CO₂ in particular, it's merely the most direct byproduct of burning wood, coal, and oil. It's not the strongest greenhouse gas, it is the simplest causal link between the massive sustained burning of carbon and vast quantities of CO₂ spontaneously appearing. If you want to know more about how CO₂ is a greenhouse gas, I'll be happy to google that, too.