The "greenhouse effect" doesn't work the same way in a greenhouse as it does in the atmosphere.

Question

Quizplus · Accepted Answer

The term "greenhouse effect" is used metaphorically to describe how certain gases in the Earth's atmosphere trap heat, similar to how glass panes in a greenhouse trap heat. However, the mechanisms by which heat is trapped in a greenhouse and in the atmosphere are different. In a greenhouse, the glass panes physically block the escape of heated air, while in the atmosphere, the greenhouse gases absorb and re-emit infrared radiation.

The "Greenhouse Effect" Doesn't Work the Same Way in a Greenhouse