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Forest fire

Most forest fire results from human carelessness or
deliberately arson. Fewer fires are started by lightning.
Weather conditions influence the susceptibility of an area to
fire. Wind movement tends to accelerate drying and to increase
the severity by speeding up combustion.

Complete fire exclusion may bring about undesirable
changes in vegetation patterns and may also allow accumulation
of fuel, with increased potential for causing
Disastrous fires in some parks and wilderness areas, where the
goal is to maintain natural conditions, lightning-caused fires may
be allowed to burn under close surveillance aircraft, which
detects fires, map their location, and monitor their growth.