Lately Eli's thoughts have wandered to building a good, excellent, wonderful lab experiment illustrating the greenhouse effect. Well there are a fair number of demonstrations on the web that purport to do this, but, they really don't. So Eli is going to put a few of them up for the bunnies to look at, and ask what is going on here
Eli did screw the pooch, answering the question a couple of weeks ago on Twitter, so those of you who saw it sssh now. There is some didactic purpose in going through a few of these.
For the old timers there is always Eli's light bulb, a pretty good illustration of a single layer model of the atmosphere. Chris Colose has a more complex multilayer model.