What happens to Helium-filled Latex balloons released outdoors?

Research has shown that after Latex balloons are launched, they often rise to an altitude of about five miles where they begin to freeze in the -50 degree Fahrenheit cold. In addition, the strong differential between the gas pressure inside the balloon and the near vacuum outside the balloon at that altitude causes the balloons to expand to the point were they eventually burst. However, because the Latex is frozen, the bursting balloon tears into shreds (the exact scientific term is called "brittle fracture"). These tiny, spaghetti-like pieces then scatter over a wide area as they fall back to Earth where they naturally begin to decay according to the process we discussed earlier.