[E. Pluribus Unum]

The total amount of carbon dioxide in the atmosphere is 0.04%.

Human’s contribute 3.2% of that 0.04%, or 0.00128%.

Complete eliminate the human contribution and atmospheric carbon dioxide is still 0.04%,

[palmer]

Human’s contribute 3.2% of that 0.04%, or 0.00128%.

Nope. Human deforestation and fossil fuel is primarily responsible for the rise from 280 ppm to 420 ppm (and rising). There's simple no other explanation. Not volcanoes (have not changed), not ocean warming (only a small portion of the CO2 rise is from ocean warming).