I was wondering where were the Space Elevator on Earth and How many they were they talk in the books about the Kilimanjaro one but I don't remember if they mention others it seems that they cannot be put anywhere (or can they ?) like in northern Canada and if they are only on the equator line would they be link together by a giant ring like station ? How many were destroyed in the fall or are not working anymore ? And how could you use a not working space elevator ?
What do you mean a butterfly cause this ? How a butterfly can cause an enviromental system overload on the other side of a 10 000 egos habitat ?