I noticed that when I opened up the material launch tool, I could launch carbon dioxide along with hydrogen and silicates, etc. When I check the planet's material composition, I see all of the hydrogen and water and all of the other good stuff, but no carbon dioxide slider! I know that carbon dioxide has some sort of effect in the game, because when I launched too much of it at Earth, Earth turned into a gaseous planet. Another weird thing, though, is that even after I made Earth into a carbon dioxide gas giant, it still read that it only had 390 ppm of CO2. Anybody know anything insightful about this?