"So fires do not occur naturally? Why would the climate be warmer?"
Swampman: The swamp gas must have struck home and put tongue-in-cheek.
Lightning has been the major cause of fires away from the villages in AK. At least two subject links are dedicated to lightning on one of the links provided.
The Alaskan Smokejumpers are kept rather busy in AK fire season, many years when the AK season shuts down they move to bases in the lower 48. In turn the Alaskan season normally starts earlier than the fire season in the Western U.S. and jumpers go to AK to help out. Looking at your profile I think you would have liked jumping into bear country with a 44, a shovel, and MRE’s.
A natural forest has a number of climate zones like a loaf of bread. When fire penetrates the duff, and the soil the local climate changes and plants that survived in that zone may cease to exist.
This morning’s report AK large fire activity
Alaska Area (PL 2)
New fires: 35
New large fires: 2
Uncontained large fires: 3
* Godlbug Creek, Galena Zone, BLM. Fifteen miles south of Deering, AK. Grass. No further information
received.
* Louie Creek, Galena Zone, BLM. Ten miles southwest of Huslia, AK. Black spruce and tundra. Active fire
behavior. Precipitation occurred over the fire area yesterday.
Sheklukshuk Range, Galena Zone, BLM. Twenty miles south of Ambler, AK. Tundra and brush. No new
information.
Willow Creek, Military Zone, BLM. Previously reported confine/contain incident. Ten miles southwest of
Fairbanks, AK. Timber. Moderate fire activity with isolated single and group tree torching. Last report unless
significant activity occurs.