"Axial Tilt is the Reason for the Season"
An article about the axial tilt and how it causes seasons: Skeptic's Play: Axial Tilt: The Reason for the Season
Also includes a bonus card image - I bet some of you creative people could make this using ornament stamps
“My dear, all life is a series of problems which we must try and solve. First one, then the next, and the next, until at last, we die.” --- Dowager Countess Violet Grantham