"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
If one is going to tell a lie, make it a big lie, tell it loudly and tell it often and eventually people will come to believe it. ~Josef Goebbels