Balloons may be festive, but they pose a risk to wildlife and even our electrical grid when accidentally released into the atmosphere. Modern balloons are made of Mylar and coated with a metallic finish. This shiny finish conducts electricity and can cause problems when balloons contact electric lines. In worst-case scenarios, they can cause power lines to short-circuit, resulting in blackouts. As for wildlife, Mylar balloons never biodegrade after they deflate, and animals often mistake the shiny material for food.
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ANDREWS MCMEEL SYNDICATION