Greenhouse have recently caught my attention lately, which yesterday I posted in Why greenhouse's inside temperature never been infinitely hot?
From what I understand recently, greenhouse gases traps the sun heat (infrared radiation) on earth, by making it harder to dissipate back into space, reflecting most of them again. The exact same process happen in hydroponic greenhouse. If that's the case - why then, hydroponic greenhouse inner temperature don't keep increasing infinitely? I mean, if we assume the greenhouse is perfectly insulated transparent container (either by several layer glazing or gas-filled), where sun heat strike daily, and less of that amount dissipate back, Shouldn't it be increasing infinitely? (income > outcome). Because in mine, the temperature tend to be stable. It did always warmer than outer air in certain degree though. Now I assume other than inside reflection, there might also be outer reflection. So not only it retaining existing heat to go out, its also blocking the new one. That's why insulated glass commercially marketed to keep the room inside cool. But if that was the case, then why we should be worry with this greenhouse effect after all? The nature seems always be in equilibrium state no matter what; lots of greenhouse gases = less incoming heat but retain the outcome, little amount of them = more outcoming heat but always up for more incoming one. Or do I missed something?
I still wonder though, if, hypothetically, I have tasked to setup new greenhouse (or generally any container) with main objective to traps sun heat the most inside, how is the best way to do it? (means within same area of space, create hottest possible greenhouses - regardless of the shape, cost, and ambient temperature of surrounding region)
Will insulation (with glazing/gas-filling) do the job? Or instead of transparent glass, will use black-surfaced metal do it?
I have no physics background whatsoever, so pardon for my shallow understanding of the topic. Any input is really appreciated