But as I mentioned in my note for the story, Aang isn't the spirit of the earth, because of the elemental connection, he's the spirit of life. Therefore, freezing him wouldn't cool down the earth. I guess I could have had people and animals (and plants, wonder how that would work) would just fall asleep, but... I'm working on the assumption that Aang's not fully alive in the ice.

And as soon as Aang comes out of the ice, there will be a sudden rash of triplet conceptions.