Many times people have used the term “blue smoke” to refer to cannabis smoke, as if something strange was in everybody’s pot that colors its smoke blue. Someone who has never seen cannabis smoke might ...

YUCAIPA, Calif. -- A smoke-generating pyrotechnic device used during a gender reveal party sparked a raging wildfire that's charred more than 7,000 acres in Southern California, officials said Sunday.

A California wildfire that has destroyed more than 7,386 acres and forced more than 21,000 people to evacuate was caused by a "smoke generating pyrotechnic device" used during a gender reveal, ...