What happens to balloons that fly away?

Often latex balloons are released either on purpose or accidentally. Research shows that most of these latex balloons—the ones that are well-tied and have no structural flaws—rise to an altitude of about five miles, where they freeze, breaking into spaghetti-like pieces that scatter as they return to earth. While we do know that animals occasionally eat these soft slivers of rubber, the evidence indicates that pieces ultimately pass through the digestive system without harming the animal.

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