Yunus spent time with farmers, manual laborers, and village residents to learn the real root causes of the famine.

FORBES: Spend Less Time On Planes And More Time With Worms

Even ex-president Liu once said that the famine was probably 70% man-made and 30% the result of natural causes.

CNN: Trapped By Their Own Lies

Their estimate of the number of people who died from the famine -- on top of those who died as a result of conflict or other causes -- was calculated using a range of information, including mortality surveys and data on food prices and wages.

CNN: Somalia famine killed close to 260,000 people, report says