[<1/1,000,000th%]

We also see what extremely high level of CO2 does to planets (see Venus).

The proportion of CO2 in Venus atmosphere is 96.5%. On Mars, CO2 makes up 95% of the atmosphere. Mars is significantly colder than anywhere on earth.

CO2 on earth accounts for less than 0.01% of the atmosphere.

However, it's true that the amount of CO2 in earth's atmosphere is increasing.

[Lunatic Fringe]

Yes, but Mars' atmosphere is so thin it cannot retain heat despite being 95% CO2.

The whole global warming debate is ridiculous. Technology is going to minimize emissions in the coming decades without government intervention.