17020
Several eruptions during the past century have caused a decline in the average temperature at the Earth 's surface of up to half a degree ( Fahrenheit scale ) for periods of one to three years ; sulfur dioxide from the eruption of Huaynaputina probably caused the Russian famine of 1601 – 1603 .
 Huaynaputina
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Huaynaputina