The definition and classification of disasters.
The universe, we are told, began with a big bang, and ever since, nature has provided a series of unexpected bangs and calamities of one type or another. Since the advent of the industrial revolution, man has been more or less controlling larger and larger amounts of energy. World population has rocketed. The interaction of crowded humanity and escalating energy has added a series of man-made disasters to the continuing natural calamities.
D002965:Classification; D004190:Disasters; D006761:Hospitals; D006801:Humans; D012066:Relief Work; D009626:Terminology as Topic; D013997:Time Factors; D014218:Triage; D014947:Wounds and Injuries / Q000145:classification