How Extreme Heat Can Ground Hot Air Balloons

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Each year people traveled a hot air balloon festivals to see giant colorful balloons floating up into the sky. Some people even take a ride just being in the air in a balloon is so different than anything else. It's just very peaceful. Jason jones with the balloon federation of america and he owns a ballooning company near kansas city. He says the basic science behind ballooning is simple. Warmer air is less dense than cooler air. So it rises. It's literally just heating the inside air of the balloon hotter than the ambient temperature to get the balloon to lift so on warmer days. The air inside. The balloon has to be heated. Even more that means running. The balloon's burner. More and on an already hot day the heat it throws off can make passengers uncomfortable and when it's really hot out the he needed to take off and fly can even damage the balloon. We start to cancel flights if we believe it's going to be ninety five degrees or hotter at flight time two years ago a heatwave forced all the balloons to stay grounded during a michigan festival and as the climate warms extreme heat is growing more common in many regions so there could be more hot days when balloons must stay deflated on the ground instead of rising skyward

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