You're busy, so here's a short video from Climate Desk that explains how climate models work.
And if 90 seconds is too long to wait, here's the gist: A model is a set of ideas about how the world works. Those ideas are then converted into mathematics. Those equations are put into a computer to simulate predictions about the future.
If you're a TreeHugger reader, chances are you already know this, but videos like this are helpful for giving us a better way to explain a complicated concept to someone else. Do you have a favorite explainer video or post? Let us know in the comments.