But you are using an actual greenhouse. Greenhouses work by blocking convection. No gas can do that. The so-called “greenhouse gases” capture and re-emit (”reflect”) a very small fraction of infrared from the earth; less than half of that “reflected” energy heads back down to earth: the rest heads out into space.
But! Butt! The temps have gone up by one hundredth of a degree! Not even close to the degree of error. Oh noes!