Every second of every day,all over the world, there are more than 100 Lightning bolts. That's about ten million lighting bolts in one day! Lighting amaze us, but it can also frighten us.We have good reason to be afraid of lighting.Every year, about 100 people in the United States and Canada die from lighting, and another 300 are injured.It is strange that of all the people who die from lightning, 84 percent are men.Lightning is the main cause of forest fires:it starts more than 9000 fires each year.