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Keeping this in consideration, are sky lanterns dangerous?
A sky lantern may land when the flame isstillalight, making it a fire hazard. In typical designs, as longas thelantern stays upright the paper will not get hot enough toignite,but if the balloon is tilted (say, by the wind or by hittingsomeobject), it may catch fire while still in the air.
Then, do wish lanterns cause fires?
Although beautiful and fun, sky lanterns havebeenbanned in many cities and countries due to potentialaircraftinterference and fire hazards. Fires starteasilywhen lanterns contact dried grass or pine needles ontheground and on rooftops. Many house fires havebeencaused by the release of theselanternsindoors.
This is one of the most common questions aboutskylanterns that we receive, and for goodreason.Typically, as long as the use of novelties is not prohibitedbystate or local laws, you do not need permissionorspecial permits to launch them.