What happens when Earth is at aphelion?

So, what exactly goes on when our planet Earth reaches its aphelion? You know, that point in its orbit where it's farthest away from the Sun? Does this mean we'll all freeze? Or is there some sort of astronomical anomaly that takes place? Does the gravity somehow shift? I'm really curious to know if there are any notable changes that occur for us down here on Earth during this cosmic event. Enlighten me, please!