It was done by Tyndall in 1858, silly ass.
more genuinely, that was the discovery of the greenhouse effect altogether. such a study as frank challenges has not been conducted successfully in a lab or on a computer, despite their modeling flaws... not one which can tie a significant temp change analogous to earth with as little as 200-300PPM additional CO2.
this is a problem with the very basis of CO2 causation.
Complete and total bullshit.
The Carbon Dioxide Greenhouse Effect
Real science from the American Institute of Physics.
Real scientists conjecturing about something that they don't know much about. Interesting scam here.
If they did know something about this, they could put together a decent and accurate prediction based on actual scenarios that predict outcomes that actually occur. Thay are not able to do this.