Drought in the Puna highlands
The "great drought" of 1956-1961 in the Puna highlands generated significant emigration to urban areas such as Arequipa. Between the mid-1950s and the mid-1960s, the percentage of Puno residents in the slums of Arequipa increased from 12.9% to 39.08%, reaching 41.41% in 1971. The population of the city of Puno …