What Are the Causes of Famine?

Answer

The major cause for the great Irish famine of the 19th century was the dependency of the population on the potato crop. The botanical cause of the Great Famine was a virulent fungus (Phytophthora infestans), spread by the wind, which first appeared on the leaves of potato plants in September and October of 1845. The diseased plants withered with shocking speed, leading to the death of over a million people who were dependant on the crop.
2 Additional Answers
Famine is caused by natural disasters like floods, droughts, earthquakes or volcanoes. It can also be caused by overpopulation, poor quality health facilities and due to little aid from donors. It can also be caused by poor government resource management.
Famines have several causes, and these include; a fall in food supply, a rise in the demand for food e.g. because of an influx of refugees, or a redistribution of what food is available due to inflation. It can also be caused by shortages within a season as a result of transport problems, or even plant and animal disease. In arid areas, drought is the main cause of famine and communities living in such areas usually have to depend on the government for assistance.
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