What percentage of forest fires are started by lightning?
Depends upon where you are and what the weather and fuel conditions are.
For example, in the southwestern part of the USA, an average of 60 to 70 percent of the wildfires are started by lightning.
However, as a global average, only about 8 percent of the wildfires are caused by natural events.
Several probable ways are: forest fires can be started deliberately by arsonists, or by a lightning strike, or by sunlight shining through the thick bottom of a broken clear glass bottle, acting like a magnifying lens. It could also be started by sparks blown into the air from a nearby garden bonfire, or a controlled burn on farmland that gets out of hand.
Lightning strikes are the Number Two cause of forest fires. Human error is Number One. At one time, it was thought that forest fires are ONLY detrimental. That theory has evolved to reveal that forest fires clear out the underbrush & fertilize the forest floor so that the big trees like Redwoods, Bristlecone Pines, Junipers, Pinyons and other conifers may flourish.
Lightning is the major cause of forest fires. careless smoking, campfires that are not put out properly, left untended, or lit in droughts, deliberately lit fires used to prevent forest fires sometimes escape containment, and people (arsonists) also set fires on purpose. War andhuman error also cause forest fires. ----------------------- ***Not according to Smokey the Bear. See the related link below, read the discussion, get the facts.
We know that every year there are have so many forest fires, most of them are caused by lighting, Because we know there are so many trees in forest and also have so much bacillus and dry leaves, dry trees, The dry leaves and trees are easy blazing. when lightning, the lighting will make a huge heat power, when the heat touch the dry leaves and trees, the fire produced, so that's why lighting cause…
Keep a sense of proportion and make your own decisions after doing a little of your own thinking; lightning has been causing uncontrolled forest and grassfires for over a billion years. In the 1920s, the USForest Service 'decided' forest fires were 'worth' fighting, and developed the 'Smoky the Bear' campaign for prompt reporting/fighting forest fires. In 1999, the USForest Service 'decided' forest health was best maintained by controlled burns and allowing lighning-strike fires to 'naturally'…
A forest fire will ALWAYS stop. Furthermore forest fires, usually caused by lightning, are a natural part of the wilderness. In fact several plant species benefit from fires as part of their life cycle. Nothing. Forest Fires are a natural occurence. The scary question is what will happen if hippies keep trying to prevent forest fires! Massive loss of life, massive loss of property, environmental damage, etc; have all happened, and will happen on a…