CO2 accounts for just 0.04% of Earth's atmosphere and 95% of that 0.04% comes from natural sources (volcanos,decomposition of organic material). In other words, man accounts for 5% of CO2 in the atmosphere, A mere 0.002% of the atmosphere (5% of 0.04%). Every human on Earth could drop dead tomorrow and would not have any significant difference in the atmosphere.

CO2 accounts for just 0.04% of Earth's atmosphere and 95% of that 0.04% comes from natural sources (volcanos,decomposition of organic material). Every human on Earth could drop dead tomorrow and would not have any significant difference in the atmosphere.