As you climb the ladder, you feel your body go cold. You start to notice icicles on the ladder as you get closer to the top. When you finally reach the room, you see the walls and floor covered in ice, stalactites reach down from the ceiling. And as you climb out off of the ladder, you see a large glass window covered in ice. Looking out upon an iceburge.
The glass window appears to have hinges on the top, there is probably a way to open it, but they are automated and the controls are not here. This appears to be your way out.
The only thing in the room besides the window is the ladder (go back down)