Pennsylvania could join a handful of other states that have banned balloon releases over environmental concerns in recent years.

A seemingly harmless celebration turned into a blackout Tuesday night when Mylar balloons hit power lines, cutting electricity for about 2,400 people on Milwaukee’s East Side. MILWAUKEE — A ...

But it wasn't strong winds or storms that knocked the power out. It was a mylar balloon, coming into contact with a power line. Those balloons are usually made out of some kind of thin ...