Fire Suppression System

[nja]

I've seen suggestions for personal fire extinguishers and for water as a resource, but this is the logical extension.  It would be nice to be able to construct fire suppression systems in areas prone to fire.  These systems (expensive, of course) would put out the fire / dampen the fire, much like rain does.  At the moment, fires during rainstorms are nothing, whereas fires during dry spells are catastrophic; perhaps this would help with a balance between the two.