Historic famine | Meaning of variable change | Possible critical parameter |
---|---|---|
China Famine 1960s | Food production decrease | a because population relocation caused changes in workforce that led to differential production across the landscape, resulting in food shortages across the country |
Somalia Famine 2010s | Sensitivity to changes in food supply | b because a combination of drought, changes in food aid, and civil unrest contributed to a total breakdown of the food production system |
Greenland Famine 1350s | Trade between political units | k because there was originally a strong trade relationship between Iceland and the rest of the Viking world. Once trade declined and eventually stopped, the Greenland colonies went extinct |