According to Professor David Sadava, the agronomist Norman Borlaug's work on plant and crop genetics ultimately saved one billion people from staving to death in the 20th century.
Norman Ernest Borlaug (1914 – 2009) was an American agronomist who led initiatives worldwide that contributed to the extensive increases in agricultural production termed the Green Revolution. Borlaug was awarded multiple honors for his work, including the Nobel Peace Prize, the Presidential Medal of Freedom and the Congressional Gold Medal. (source: Wikimedia)
"In 1970, Borlaug was awarded the Nobel Peace Prize. There is no Nobel Prize for agriculture, but it was appropriate that he be honored, because his work prevented massive starvation and the political instability that would have followed. By human impact, it was the most important genetics experiment of the 20th century." (Source credit: Professor David Sadava)