

The same reason your house isn’t a pure “air” environment.
Carbon Dioxide is heavier than all the components that make up the air you breathe. In a greenhouse they have fans that move air around, because stagnant air would generally be bad for both plants and humans. You’ll notice a gap in all greenhouse environments to the ground.
CO2 gets pulled in, but eventually pushed out because of its weight, but enters in from the ambient atmosphere being injected by the fans.























Wasting even more tax dollars in courts doing something blatantly illegal.