A tension that has existed in all attempts to define a famine is between definitions of famine as an event and definitions as a process. In the first case, famine is defined (roughly) as the event of many people dying of starvation within a locality or region. In the second, famine is described as a chronology beginning with a disruption or disruptions that gradually leads to widespread death. However, these general definitions have little utility for those implementing food relief as "region", "widespread", etc. are undefined. One of the earliest methods of measurement was the
Indian Famine Codes developed by the colonial
British in the 1880s. The Famine Codes defined three levels of food insecurity: near-scarcity, scarcity, and famine. "Scarcity" was defined as three successive years of
crop failure, crop yields of one-third or one-half normal, and large populations in distress. "Famine" further included a rise in
food prices above 140% of "normal", the movement of people in search of food, and widespread mortality. The Punjab Food Code stated, "Imminence of death is the sole criterion for declaration of famine." Inherent in the Famine Codes was the assumption that famine was an event, and not a process. The basic premise of the Famine Codes formed the basis of numerous subsequent
early warning systems. One of the most efficacious is the
Turkana District Early Warning System in northern
Kenya in which indicators include
rainfall levels,
market prices of
cereals, status of
livestock,
rangeland conditions and trends, and enrollment on food-for-work projects. The system identifies three levels of crisis: alarm, alert and emergency, each of which is linked to a planned response to mitigate the crisis and try to prevent a worsening of the situation. International organizations responding to recent food crises created
ad hoc measurements. In 2002, the
World Food Programme created a number of "pre-famine indicators" for
Ethiopia and combined it with measurements of
nutrition levels to create recommendations. The
Food Security Assessment Unit (FSAU) devised a system for
Somalia with four levels: Non-alert (near normal), Alert (requires close attention), Livelihood Crisis (basic social structures under threat) and Humanitarian Emergency (threat of widespread mortality requiring immediate
humanitarian assistance). This system formed the basis for the subsequently developed
IPC five-phase scale. == Livelihoods strategies ==