So I have 4 eggs 2 of which just pipped ahead of when I thought they were schedule even though my house has only been in the high 60s this winter.  Sorry I am asking this question because I think the answer has changed in the community over the years from when I last kept chameleons.  I live in MA where it is difficult to maintain humidity in the winter.   Would I be fine using a Zilla glass bow front 18x21x25 or Exoterra  for a short period of time that has the front vent strip being a reptile enclosure?  Years ago people would say screen enclosures all the time but I have heard opinions change over the years for colder climates.  What is the word on the street these days?  Exoterra's can work in cold dry climates or stay screen?  Personally I like the idea of glass just so when I mist it doesn't get all over the walls.  If I go screen I will cover 2 of the sides and add my mist king to a top corner.