The green revolution During the 1960s, due to poor harvests of wheat and rice caused by successive years of bad climate, India, Pakistan, Nepal and other South Asian countries saw the worst grain shortages and famines of this century. As a result, these countries put out a call for international emergency aid that was answered immediately by the United States, which transported millions of tons of wheat to the devastated areas.
綠色革命早在六○年代，印度、巴基斯坦等南亞國家，因連年的不良氣候，小麥及稻米歉收，發生了本世紀最嚴重的缺糧與饑荒，因而向國際發出緊急救援的呼聲，美國立即運送了數百萬噸的小麥抵達災區。