Editing Nuclear winter (section)

=== Fire control ===
In a report from 1967, techniques included various methods of applying liquid nitrogen, dry ice, and water to nuclear-caused fires.<ref>W. E. Shelberg and E. T. Tracy. "Countermeasure Concepts for Use Against Urban Mass Fires From Nuclear Weapon Attack" U.S. Naval Radiological Defense Laboratory, San Francisco, California 1967.</ref> The report considered attempting to stop the spread of fires by creating [[firebreak]]s by blasting combustible material out of an area, possibly even using nuclear weapons, along with the use of preventative [[Controlled burn|Hazard Reduction Burns]]. According to the report, one of the most promising techniques investigated was [[cloud seeding|initiation of rain from seeding]] of mass-fire thunderheads and other clouds passing over the developing, and then stable, firestorm.